To be fair, it's not even really my pun. I can't remember where I heard it. I think it was back in the 90's, possibly on a mailing list discussion of what would be a really bad cross-over concept for fan-fiction. I wish I could remember who said it because it was awful enough to remember all of these years and, if that isn't the mark of a really good pun, I don't know what is!
It was me. We were chatting during the early days of the TG Toons Yahoo group and I mentioned this idea. I told you that I had attempted it, but failed horribly. You laughed and asked if you could give a try and I said be my guest