I was recovering from surgery when a charity representative phoned asking me to take part in a door-to-door fund-raising effort.

"Sorry," I replied, "but I've been incapacitated."

Undaunted, the caller kept trying to convince me to change my mind and volunteer.

I interrupted and said, "Listen to me. I'm incapacitated. Do you know what that means?"

She hesitated. "It means your head was cut off?"