I like to threaten my girl with running. Last night, as she was furiously biting her nails, I said, "oooh, stop doing that!" and she said, "I know! I know! I just can't!" and I said "If you bite your nails again you have to get up 40 minutes early in the morning and run."
"Oh."

Today she called to complain about how she's eaten too many Valentine's Day chocolates and that she CAN'T STOP! "For every chocolate you eat between now and tonight, you have to add another mile onto your run."
"Okay, I'm not eating any more."

I'm not sure what I think is funnier, that I've decided on this as my bargaining tool, or that she listens.