One of my pet peeves playing poker is when the board is the nuts (most often a 10-A straight with no flush possibilities) and some jackass goes all-in in an attempt to make me fold, and I have to call or I lose the money in the pot, but by increasing the pot size, the rake is increased.
The general stupidity of this move always astounds me.
I guess this is only relevant to a cash game where there is a rake, so if it was a tourney throw them chips in I guess.... maybe someone will accidentally hit the fold button