Lonely widow

A widow, age 70, decided it was time to get married again. So she put an ad in the local paper:

HUSBAND WANTED: MUST BE IN MY AGE GROUP (70's),
MUST NOT BEAT ME, MUST NOT RUN AROUND ON ME
MUST STILL BE GOOD IN BED! ALL APPLICANTS PLEASE APPLY IN PERSON.

The very next day, the doorbell rang. To her dismay, she opened the door to see a grey-haired gentleman sitting in a wheelchair with no arms or legs.

The old woman said, 'You're not really asking me to consider you?  Look you have no legs!

The old man smiled, 'Therefore, I cannot run around on you!'

She snorted. 'You don't have any arms either!'

Again, the old man smiled, 'Therefore, I can never beat you!'

She raised an eyebrow and asked intently, 'Are you still good in bed???'

The old man leaned back, beamed a big smile and said, 'Rang the doorbell didn't I?'