Well, sure dogs bite, but I haven't read many stories of the small breeds pulling down adults and killing them. Also small dogs tend to bite and release..damage minimal. Also easier to scare a small breed off. Larger breeds, like the Pitbull, grab and hold, shake and tear, causing serious injury/death. Hitting them on the head with a frying pan won't get them to let go of their intended target. Sorry, Pitty people...it just doesn't wash.