Q: What is the best food to eat when you are scared?
A: I scream!

Explanation: People scream when they are scared, I mean, really scared. When was the last time you were really scared?  Hopefully it was for something fun like a roller coaster and not for something terrible like a car accident or an earthquake.

“I scream” sounds like “ice cream” and that is what makes this joke funny.  Maybe a dish of vanilla ice cream would go well with a Hitchcock film tonight.