Old people at weddings always poke me and say with a smile, "You're next." So I started to do the same at funerals.
Do they think that your joke is funny?
No, the bastards have no sense of humor.
I don't think it's nice to make jokes about elderly people dying. These sorts of comments can really hurt people's feelings. Also, we're all going to get old some day, and would you like it if someone said that to you then?