No arms, No legs

A woman posts an ad in the newspaper that looks like this....

Looking for a man with these qualities
- Wont beat me up
- Wont run away from me
- Is great in bed

She got loads of responses for her ad, but she found someone perfect on her doorstop one day. The man she met said "Hey, my names Bob. I don't have arms, so i cant beat you. I dont have legs so i can't run away from you."

So the lady says "What makes you think your good in bed?"
Bob replies... "I rang the doorbell didn't i?"