I believe it about chihuahuas. All those teeth!

She went after a poor German Shepard that was walking by, minding its own business. The poor Shepard ran, kept looking behind it to see what was after it, and couldn't see anything -- must have thought it was some invisible demon!
Glad for you Chonk's sake that there was a chainlink fence!

raising Chihuahuas as they are not actually bullies. They are mercenaries.

I think it's their size and their ego!

If my ChiChi was a biter. I would always answer, yes. The fact is that she only ever bit one person. Me. On a regular basis. I would give the whole world for just one more of her bites.