A lady walks into a welfare office and the guy at the desk asks her how many kids she has.

She says, “23, and they’re all named Billy.”

The clerk says, “Why would you do a stupid thing like that?”

She says, “So if I wanna call them all at one time, all I have to do is say Billy.”

The clerk asks, “But what if you only wanna call one?”

The lady replies, “Easy, I call them by their last name.”