"Act of Generosity" joke

A woman was chatting with her next-door neighbor...
"I feel real good today. I started out this morning with an act of unselfish generosity. I gave a five dollar bill to a bum."
"You mean you gave a bum five dollars? That's a lot of money to give away like that. What did you husband say about it?"
"Oh, he thought it was the thing to do. He said, "Thanks."