This reminds me. Have you seen that comic where a giant frog swallows a woman? I'm 99% sure you have, but still, that thing occupies too much of an uncomfortable and disturbing place in my mind for me not to mention it.
Their Jaw strength is somewhat decent, but these guys have bonespurs that grow out of their jaws and work as pseudo-teeth. Frogs don't technically have teeth, but they can have something very similar and just as sharp.
It's not life threatening as long as you treat the wound afterwords, but it can hurt as much as any other type of small animal's bite(ignoring venom and turtles).