Haha, I do sometimes
I look up geek stuff when it's late and no one is online to talk to.
The other night I was looking up funny scenes from the Star Trek tv series - I found a collection of clips of McCoy saying "[wash my mouth][wash my mouth][wash my mouth][wash my mouth][wash my mouth][wash my mouth], I'm a doctor, not a _________!", the doctor on
Voyager singing a song to the crew when Tuvoc suddenly goes into the Pon Farr, and hilarious Shatner clips.
In the past I've watched vids of people doing dances from
World of Warcraft (look up Blizzcon Dance Contest, it's gold), stupid voiced-over old GI Joe PSA ads (I laughed so hard I cried), clips from Ninja Turtles, etc.
When it's late, I find the weirdest stuff absolutely hilarious.