When i was living in halls (dear go i have to talk past tense now :( ) Money was tight so we diddnt like to waste things. So as a result we instigated the 30 second rule. If a peice of food fell on the floor we had 30 seconds to recover it before it was classed as dirty. I once ate some onion rings out from the bin :D they werent bad. Ahh the good old days.
Anyone else have a simmilar rule?