A crusty old Navy Master Chief found himself at a gala event hosted by a local liberal arts college.
There was no shortage of young idealistic ladies in attendance, one of whom approached the Master Chief for conversation.
"Excuse me Master Chief, but you seem to be a very serious man. Is something bothering you?"
"Negative ma'am. Just serious by nature."
The young lady looked at his awards and decorations and said "It looks like you've seen a lot of deployments."
"Yes ma'am, a lot of deployments."
The young lady, tiring of trying to start up a conversation, said, "You know, you should lighten up. Relax and enjoy yourself."
The Master Chief just stared at her in his serious manner.
Finally the young lady said, "You know, I hope you don't take this the wrong way, but when was the last time you had sex?"
"1955, ma'am"
"Well, there you go. No wander you're so serious. You really need to chill out! I mean, no sex since 1955?" She took his hand and led him to a private room where she proceeded to "relax" him several times.
Afterwards, panting for breath, she leaned against his bare cheat and said, "Wow, you sure didn't forget much since 1955."
The Master Chief said, after glancing at his watch, "I hope not, it's only 2130 now."