The first couple of "snaps" are tremendously fast though. A person or dog could easily lose a finger, paw, or nose.
I spent my spring break with my family at the Ocean Village resort in Florida this year. In the resort's pond is a colony of soft-shelled turtles, which are endearing-looking creatures with pig-like snouts (well-evolved for snorkeling and rooting through the muddy bottom), but which also have a reputation for a nasty bite. We regularly fed them crawfish, sandfleas, and the occasional freshly-dead crab found on the beach (they're voracious but also very picky eaters who won't eat anything that smells bad). Alas for the turtles, the bluegills in the pond would often snatch the treats from under their snouts; when this happened, they would slap the water surface angrily with their paddle-like feet.