A very loud, unattractive and mean acting woman walked into Wal Mart with her two children, yelling obscenities at them all the way through the entrance. The Greeter said very pleasantly, 'Good morning Ma'am, and welcome to Wal Mart. Nice children you have there. Are they twins?'
The woman stopped yelling long enough to say, 'Hell no they ain't! The oldest is 9 and the youngest is 7. Why the hell would you think that they are twins. Are you blind or just stupid?'
The Greeter replied, very politely: 'I'm neither blind nor stupid, Ma'am. I just couldn not believe that someone would sleep with you twice. Have a good day, and thank you for shopping at Wal Mart.'