A man notices a guy sitting alone in the same pub night after night. The man is always sad, and even cries over his beer sometimes. Feeling sorry for him, the man introduces himself and soon the two of them are talking like old friends. However, the guy becomes sad again after they've had several drinks.
"I can't help but notice you seem to have something on your mind, Bill. Do you want to talk about it?" asks the first man.
The sad man, Bill, nods, chugs back his beer and slurs, "I'm so lonely these days! I was married before! Twice! But, unfortunately both of my wives died suddenly!"
"That's too bad, Bill. How did that happen?"
"My first wife died from eating poison mushrooms!"
"Wow! That's terrible! How did your second wife die?"
"Gunshot from behind."
"Oh, my! How did that happen?"
Bill replies, "She wouldn't eat her mushrooms!"