F4 jokes

What’s the difference between Hitler and Steven Hawking?

Nothing, they're both dead, one painted the walls and the other committed suicide by pressing ALT + F4.

F1, F2, F3, do you know what’s after F3?

- F4, F U, then last F U Q.

I think I know why Stephen Hawking died, he pressed Alt+F4.

How did Stephen Hawking die?

He hit Alt+F4.

Why is September 11th the best birthday ever? No one forgets it :)