That was interesting, JJWhite. Thanks for explaining that to us.
What about the good jinn? I suppose they exist as well? What do they do with their time?
eudaimonia,
Mark
I guess... all sorts of thing.

I don't know. I've never talked to one. ha ha. From what I've heard (from people talking, don't know what they base it on) is that jinn, like humans, tend to fear the unknown, and since we are different, most don't like to mess with 'our world'.
Scholars have described several motivators that cause jinn to possess people (such as 'falling in love' with the human, revenge, etc.). I'm not sure what they are basing it on either, but it may be from reports of conversations people have had with jinn. My husband had a roommate in college who, after always hanging out with the rest of them, suddenly started avoiding everyone and staying alone in the room all the time. They were worried he was going through some sort of depression, but they didn't know what to attribute it to. There were other symptoms as well. I don't know the whole story or what lead up to this part (didn't ask my husband, but I could)... anyway, one day during a car ride (this is like 20 years ago in Saudi Arabia) in which they had their friend with them, the troubled friend seemed to fall unconscious, and then spoke with a voice that was very different than his own. He told my husband that he hated him and wish he could hurt him, but that he couldn't get at him because he was shielded by the remembrance of God, but that he was waiting for his chance to get at him. So, it could be that a jinn was speaking to my husband, or it could be that his friend was schizophrenic or had some other psychological illness (and I think there's scientific research about voice changes and even speaking in tongues and all that sort of thing which is reported to happen), or it could be some trick on his friend's part (though that one seems unlikely considering the condition of his friend), so who knows???
That's all story and speculation. There's a chapter of the Qur'aan called 'The Jinn'. It's Chapter 72. I trust in what God has to say. This is Marmaduke Pickthall's translation on meaning.
Al-Jinn
In the name of Allah, the Beneficent, the Merciful
Say (O Muhammad): It is revealed unto me that a company of the Jinn gave ear, and they said: Lo! we have heard a marvellous Qur'an, (1) Which guideth unto righteousness, so we believe in it and we ascribe unto our Lord no partner. (2) And (we believe) that He - exalted be the glory of our Lord! - hath taken neither wife nor son, (3) And that the foolish one among us used to speak concerning Allah an atrocious lie. (4) And lo! we had supposed that humankind and jinn would not speak a lie concerning Allah - (5) And indeed (O Muhammad) individuals of humankind used to invoke the protection of individuals of the jinn, so that they increased them in revolt (against Allah); (6) And indeed they supposed, even as ye suppose, that Allah would not raise anyone (from the dead) - (7) And (the Jinn who had listened to the Qur'an said): We had sought the heaven but had found it filled with strong warders and meteors. (8) And we used to sit on places (high) therein to listen. But he who listeneth now findeth a flame in wait for him; (9) And we know not whether harm is boded unto all who are in the earth, or whether their Lord intendeth guidance for them. (10) And among us there are righteous folk and among us there are far from that. We are sects having different rules. (11) And we know that we cannot escape from Allah in the earth, nor can we escape by flight. (12) And when we heard the guidance, we believed therein, and whoso believeth in his Lord, he feareth neither loss nor oppression. (13) And there are among us some who have surrendered (to Allah) and there are among us some who are unjust. And whoso hath surrendered to Allah, such have taken the right path purposefully. (14) And as for those who are unjust, they are firewood for hell. (15) If they (the idolaters) tread the right path, We shall give them to drink of water in abundance (16) That We may test them thereby, and whoso turneth away from the remembrance of his Lord; He will thrust him into ever-growing torment. (17) And the places of worship are only for Allah, so pray not unto anyone along with Allah. (18) And when the slave of Allah stood up in prayer to Him, they crowded on him, almost stifling. (19) Say (unto them, O Muhammad): I pray unto Allah only, and ascribe unto Him no partner. (20) Say: Lo! I control not hurt nor benefit for you. (21) Say: Lo! none can protect me from Allah, nor can I find any refuge beside Him (22) (Mine is) but conveyance (of the Truth) from Allah, and His messages; and whoso disobeyeth Allah and His messenger, lo! his is fire of hell, wherein such dwell for ever. (23) Till (the day) when they shall behold that which they are promised (they may doubt); but then they will know (for certain) who is weaker in allies and less in multitude. (24) Say (O Muhammad, unto the disbelievers): I know not whether that which ye are promised is nigh, or if my Lord hath set a distant term for it. (25) (He is) the Knower of the Unseen, and He revealeth unto none His secret, (26) Save unto every messenger whom He hath chosen, and then He maketh a guard to go before him and a guard behind him (27) That He may know that they have indeed conveyed the messages of their Lord. He surroundeth all their doings, and He keepeth count of all things. (28)