Now that is comedy!
Do you do this in the checkout line at the grocery store? If you did it in the isles, you might see lots of people look for the person who wronged you.
Make sure to sound like a wounded damsel though. In fact, use colloquial English.
Say things like:
"You just done wronged me! I ain't fat, I'm big boned! You ain't complaining about my bein fat when I cook you supper after a long day."
You've got to really sell people on this joke.