this is called 'OH PUPPY, NOW YOU SEE ME, NOW YOU DON'T'.
The bunny finds it amusing, as he plays it often. Pops his bunny face out for the puppy to see him, pops it back out of sight. The puppy isn't finding it quite as much fun. This particular game began at 5:20 a.m. I'm beginning to think the bunny has a death wish. And, I am keeping the glass company's number on hand.