I love waking up for a midnight snack and notcing the large cake pan, ice cream carton, soda bottle, etc... has one portion (if not that) left. It is as if the last person to partake has left the message of either:

A) "Screw you, I want you to do the dishes."
"I didn't want to appear as the pig for eating the WHOLE thing."
C) "I wanted to leave you a taste... just so you can see what you were missing."
D) "I am helping you watch your waistline. Consider it a favor."
E) "The trash can was 3 cm. out of my walking distance."
F) "I wanted to start a science experiment, but since you are there you can throw it out, and write my thesis."

This is a natural occurance in my house. I come home, wanting to indulge in what is sitting in my fridge, and notice I would have a better chance of licking the pan for a full meal then eating the tiny morsal of what was the entire cake, cassrole, or what have you.

The famous one is the last bite of ice cream in the carton. It is like the "Forbidden Fruit". Yet the container sits there. I once left a carton in the freezer on purpose just to see how long it would take for someone to throw it out. Needless to say.... it was discovered 3 mos later when someone wanted ice cream on a hot day. Even then it was shoved to the back again.