My bp goes through phases where he likes to burrow. He went under his water bowl a few times (but it wasn't like every day) and since my bowl is fairly heavy I was a little worried. I simply took out the bowl, removed the substrate from under it, and then put it back in directly on the glass.

Some people will say that ball pythons don't like to burrow, but I don't think that's always true. Just the other night my baby decided that it would be better to burrow a mini tunnel out of his hide rather than go through the actual opening of it... snakes all have their own quirks I guess.