Ok how about this.

The TA is like a box of chocolate. So exciting to get the shiny wrapped box, until you open it and pick up a piece. You take a small bite, and realize it tastes like crap. You put it back and repeat this process until the whole box is full of saliva covered half eaten pieces of crap.

Then your wife walks in and says, "who the FiretrUCK took bites out of my chocolate?!?!"

I bet that one will sway the yes guys!