Whilst a biochemistry student
I was required to to a bizarre practical which involved measuring the speed of passage of vitamin C through the digestive system. I had to take a massive dose of the vitamin and then collect samples of my piss hourly for the next twelve hours.

I also had to store them in the fridge to ensure the vitamins wouldn't degrade. I was a first year in halls at the time and my co-residents were not at all happy about these vials of piss turning up in the communal refrigerator.

After the first couple of samples, I went to the fridge and got a horrible shock - the earliest sample had turned blood red! At the following hour the next earliest had also gone red and the original had gone black! At this point I started to think there must be something seriously wrong with me ... and moreso when I opened the fridge a third time and found a third sample had also become bright red.

The next time I went the next sample in line had turned green. After a moment of abject horror I suddenly rumbled what had been going on - one of the other students in the hall had been carefully sneaking food dye into the samples in order to freak me out ....
(MattDP (Squiggle), Fri 19 Sep 2008, 10:47, 1 reply)

This, Sir,
Officially enlightened my afternoon and made me lol for about 5 minutes.
(NegCheg fap fap fap, Fri 19 Sep 2008, 16:46, closed)