air force colonel and sex

A crusty old air force colonel finds himself at a gala event
hosted by a local arts college. There is no shortage of young,
idealistic ladies in attendace, one of whom approaches the
colonel for conversation.
"Excuse me," says the woman, "but you seem to be a very serious
man. Is something botheing you?"
"No," the colonel says, "I'm just serious by nature."
The young lady looks at his awards and decorations and says, "It
looks like you've seen a lot of action."
"Yes, a lot of action," replies the colonel.
"Look," says the girl, angry at this unconversational nature.
"You should lighten up a little. Relax. Enjoy yourself."
When the colonel replies that he already is, the girl snaps.
"Stop being so formal!!" she shouts."I mean, when was the last
time you had sex?"
The colonel looks at her. "well, that would have to be 1955," he
replies.
The girl cackles in triumph. "That's it," she laughs. "You've
got got a hang up about sex. You need to chill out! No sex since
1955! Isn't that a little extreme?"
"Oh I don't know," says the colonel,glancing at his watch.
"It's only 2130 now."