I have to be honest, I think that spending the money at a strip club is somewhat wrong b/c there are others that could use it for food, water, diapers, etc.
That being said, I also think of it like I think of many asking for change on the street. If that drink is going to make them happy, then why can't they have it? It is a tough call.
Here is a website that has some very emotional images...
http://www.watchingkatrina.com/