The Joker is Batman’s greatest foe. Time and time again they meet in battle. Here are ten things that you should not say to the Clown Prince of Crime:

1.   Would you like to entertain at my child’s birthday party?

2.   Can you please get me Batman’s autograph? While you’re at it, I’d like Robin’s too. He’s so cute.

Image via Wikipedia

3.   Here’s my card. If you ever want to consider having plastic surgery, call me.

4.   Why do you live a life of crime? The circus is in town and with any luck you could get a real job.

5.   Can you please get me Crusty the Clown’s autograph?

6.   Can I have a ride in your Jokermobile?

7.   Is Harley Quinn really as hot as she looks?

8.   Can I take your picture? Just smile for the camera. Oops, I forgot. You always smile. Say, what’s that gas coming out of your flower?

9.   Purple isn’t the real you. Why don’t you wear yellow and pink instead?

10. I know Catwoman and Penguin. Although you are quite a card, you just aren’t in their league.