Boars can do big damage. The problem in the Southern United States is a lot of hog farms have escapees and those hogs that escape turn feral in a matter of days, they develop tusks and coarse hair and they are constantly eating and digging up land. The bad thing about the formerly domestic hogs is they are usually really really big.

Hunters will lose dogs hunting boar, that is just a fact of life regardless of if you put safety vests on your dogs too. Those hogs gore and bite and they are mean as fuck.