You dont want to bump into one...it'll be your last bump. A wolverine is extremely territorial and will attack anything on their turf. they are the largest member of the weasel family and can be extremely dangerous. Try petting one to find out! Seriously all joking aside any wild animal is dangerous. Even a squirrel. I highly doubt a wolverine would stalk and attack a human as prey, butj just as with any wild animal- if injured or cornered they will protect themselves and attack.