Made me smile - Twins

A very loud, unattractive, mean, nasty,ugly  woman walked into Wal-Mart with her two kids, yelling obscenities at them all the way through the entrance. The Wal-Mart Greeter said pleasantly "Good morning, and welcome to Wal-Mart. Nice children you have there. Are they twins?"
The ugly woman  stopped yelling long enough to say, "Hell no they  ain't. The oldest one's 9 and the other one's 7. Why the hell would you think they're twins? Are you blind, or just stupid?"  
-"I'm  neither blind nor stupid, Ma'am," replied the greeter. "I just couldn't believe someone would f..k you twice."