Joe, I hate to go against the consensus, but I think you were out of line. This song basically celebrates random violence of the most repellent sort -- admittedly, it does it in a humorous way, but it pushes the envelope a little too far for my taste. I think you should apologize (it won't kill you) and be a little more judicious in the future.

In case you're wondering, I'm not Christian, and don't have a great deal of patience for the more reactionary fundamentalist types. I also really enjoy Shel Silverstein, and I'm not overly censorious with my own children. But come on -- you were singing to kids about the joys of bludgeoning people to death with a hammer, poisoning them, etc. I think you could have chosen your material a little more wisely.