When your monster is 7 feet tall, you know he is ready to be potty trained. He will need to be about 200-300 years old unless he is a three-eyed purple monster with horns. They should be about 400 before they're ready for their own potty. You'll have to "have your monster dress in comfy clothes and you'll have to help him remember to go. You may want to throw a monster potty party and you can always give him some slimy slugs to show him how proud you are when he goes on his own. This is a whole new look at potty training!
How To Potty Train Your Monster