"Badgers are opportunistic carnivores and will eat almost anything under the size of a woodchuck (groundhog). Badgers are especially adept at capturing burrowing mammals such as woodchucks, ground squirrels, and gophers. Other food items include voles, mice, ground-nesting birds, insects, and carrion.
To capture prey, badgers give chase and then will burrow after their prey effectively trapping the animal. They are even known to block entrances to burrows dug by communial rodents like ground squirrels prior to digging after the prey."
Sounds like a pet badger would take out the groundhog and local voles! While they will not eat your garden, however, they may not respect it very much either!
(Tres "Cute",Ne'cest Pa? (Watch out for the teeth!))