Two spacemen were shooting through space in their rocketship.

They were returning to their planet from Earth, and were bringing back a bunch of bananas.  They had never seen bananas before.

Just as one of them bit into his banana, the spaceship dropped into a Black Hole.

First spaceman: “Did you take a bite out of your banana?”

Second: “No.”

First man: “Well, don’t.  I just did and went blind!”