how to give yourself enormous back pain during an exam
When taking a 3 hour short-essay format test in those lecture halls with the small fold-out writing surfaces - if you're right handed, make sure to sit in one of the few left handed seats, but don't notice that you've made an error until exams are out and noone can switch spots. If you're left handed, just get a right handed desk. My spine made some weird sounds for a day or two after 3 hours of being hunched over my left knee frantically scribbling my way towards an A- in the course...

oh and another useful one: if you need to bring a tear to your eye and/or induce a sneeze, yank a nosehair out
(chickensoupforyourface, Sun 11 Jan 2009, 7:49, 3 replies, latest was 16 years ago)

Nosehairs
Is it just me or are there others out there who find the pain of a nosehair being yanked out somewhat pleasurable?
( mistaspakkaman and the inedible shifting caterpillars, Mon 12 Jan 2009, 21:28, Reply)

it's so eye-wateringly painful
that it is enjoyable.

you are not alone
( Vipros. clever got me this far, then tricky got me in, Tue 13 Jan 2009, 17:17, Reply)

Did this on tuesday
...had conjunctivitis, so did it to make my eye water and flush out the rampant debris.

Felt brilliant :)
(Fleximus Rex briefly gave up lurking on, Thu 15 Jan 2009, 13:00, Reply)