The definition can made using the quantitative measure of weight.
Harsh preemptive punishment for creating the risk in the first place is better
Which is exactly what I suggested.
And most important, containment is more essential with some breeds than with others. Plain and simple. This "regardless of breed" mantra is patently ridiculous.
Containment is a plain and simple principle of responsible dog-ownership regardless of breed.
There are millions of dog-bites each year. They are all serious and unacceptable.
If that attitude, in your mind, makes me seem ridiculous, then so be it.
My mom got bitten by a dog this year and her hand swelled up like a cantaloupe. It was a little dog that lunged at her from a shopping cart. Serious and unacceptable? Well ... not really, just one of those things. My mom shrugged it off because she's a sensible woman who actually has the courage and confidence to differentiate and rate things in terms of their significance. If it had been a pit or a Rott that lunged at here, you seriously tell me that it would have been equally serious and unacceptable. Yes, that does make you seem ridiculous.