What's the Best Mistaken Pregnancy Story You've Got?

In this case, "Mistaken pregnancy" refers to others thinking you're pregnant when in reality you're just a little big.

I'll go first:

My mother was at work when a coworker said during a conversation, "You're absolutely stunning! When are you due?"

Her only response was "About 14 years ago."

Mines not very good, however, So let's hear yours.