That's actually an amusing story.
It was today, at work. After one of the lads let off a stink bomb. Everyone around me was retching violently and I couldn't understand what was going on - as I couldn't smell a thing!
Up to that point I just wrote it off, and chalked all of my symptoms down to a secondary infection from a recent cold (my sinuses have never been very good.) I've also been working hard lately on personal projects as well as clocking in some pretty busy shifts, so I thought, hey, maybe I'm just a bit run down.
But, I have a VERY sensitive nose, and I've never not been able to smell, so I took a test.
And almost as soon as I dropped the solution onto the lateral, two neon red lines began blushing at me - and it was at that point I KNEW, my weekend had been stolen...
Ironic really, how a childish prank actually goaded me into doing something pretty responsible. I would have just kept ignoring it otherwise.
Yeah, I could have just said "I found out today", but that would have been too easy.