Dirty jokes for grandma

Here's an example of altruistic action you won't find in your average celebration of charitable virtue: sharing dirty jokes to cheer up someone's dying grandmother. One for the road:

My grandmother loved naughty stories. She told me this when I was in junior high.

A man with a pet duck goes into a bar and orders a drink, but the bartender says, "No pets allowed." So the guy goes outside, stuffs the duck in his pants and returns for a beer or two. Next he's sleepy and decides to have a nap in the theater next door....

A couple comes in and sits next to the snoozing drunk, who has unzipped his pants to give the duck some air. The woman, who is sitting next to him says, "Frank! the man next to me is exposing himself!" Frank says, "Just don't look, don't make a fuss, you'll only encourage him." "Well OK," she says, "but it's eating my popcorn."

Requiescat in pace.