Smart Alec

A stoner stumbles out of a party, and starts to walk home.
One the way he bumps into a guy who is all bloody and mangled. The guy limps up to the stoner and says "Call me an ambulance!" The stoner looks at him for a second, smiles and says, "You're an ambulance!"

Weights and Measures

Science Teacher: How much is a gram?
Tyrone: Umm, depends on what you need.

Keep That A Secret

After many years of hard work, Joe rewarded himself with a long, luxurious stay at an exclusive caribbean resort.  While relaxing on the beach, he was surprised to see a former high school classmate who he hadn't seen since they graduated. His old friend had been something of a "burnout" in high school, and this was the last place Joe expected to see him. Joe approached the man, and seized his hand. "Pete, it's Joe. From high school. It's sure been a long time. You look great! You must really be doing okay for yourself." "I am," whispered Pete. "I am a partner with a very successful law firm. But don't tell mother. She got the idea that I was a drug dealer back when I was in high school, and she would be terribly disappointed if she figured out how I really make my money."