Funny Dirty Joke

An elderly woman that had lost her husband a couple years ago decided that it was time for a new husband. So being the old fashioned woman she is, put an add in the paper. It stated. Looking for a husband. Must not run around. Must not hit on me but must also be good in bed.Well one day she heard the door bell ring. When she answered it, she was shocked to see a man in a wheelchair with no arms or legs.
Man: afternoon ma'am. I'm here about the add in the paper.
Woman: you? But your in a wheelchair.
Man: well you see I have no legs so I won't run around on you.
Woman: agree's
Man: you see I have no arms so I can't hit on you.
Woman: yes that's true. But are you good in bed?
Man: I rang the doorbell didn't I.