Pufferfish are where it's at. I spent some years going to a doctor's office on a very frequent basis for routine shots, and they had a fishtank with a pufferfish named Frankie there, among other fish. He looked a lot like the fish in this image here, but his eyes were blue and sparkly. They would wait to feed the fish until I was there because they knew I liked watching Frankie eat. He would take this huge food cube in his mouth and then masticate it really hard and all these little bits would go flying everywhere, then once he'd finished his violent chewing he'd grab the largest piece that flew off and repeat. It was so fun to watch!
Sadly, at around year 2 or so of these meetings, he passed away. They got a new fish but the new one wasn't nearly as fun.
