A woman walks into a fabric shop and says, "May I have three yards of Satan, please? I'm making a dress for my sister."
"I believe you mean satin, ma'am," the shopkeeper replies. "Satan is something that looks like the devil."
"Oh, then you've seen my sister!"
MORE WAYS TO LAUGH
chihuahuabulldog : I've told you for the last time; I am NOT making her a dress. ;-) voted