I do feel guilty about wasting food but not enough to waste my body. I prefer the dump it on the office method. It actually is nice to see someone grab a cookie/chocolate/candy and have a smile on their face, you have brightened their day and made yours better by not eating all that candy!
One night I was dying for jolly ranchers, bought a huge bag but couldn't stop myself from overindulging. So I just put the rest in the lobby candy dish! I wanted them for myself but I have ZERO willpower. :(

