What's the difference between roast beef and pea soup?
It's easy to roast beef.
What's the difference between Isaac Newton and the baby I just stabbed to death?
Isaac Newton died a virgin.
What is the difference between a baby and a watermelon?
One is a refreshing summertime snack; the other one is a watermelon.
Today is sad. My sister got hit by a car, and I lost my license as a driver.
What is the difference between a nerd and leafyishere?
One is fun to laugh at, bully, and roast, and the other is just a nerd.
What's the difference between my girlfriend and my sister?
There is no difference.