Yep, most cunning and destructive thieves I've seen and yes they can be VERY vicious. Friend said he's had a live trap torn up by one. I've had a few attack/bite the barrel of a rifle, hissing, tearing up anything they can. If you see a mama with babies, kill it if you can but stay away if you can't. For Miss Bangkok, these are powerful animals that have long sharp teeth for tearing meat, clawed hands that are as ambidexterous as your hands, and they are pure muscle and can carry rabies.
Out of a potential ton of premium quality grapes (had no bunch rot this year, they were picture perfect), I've lost at least 1,600 lbs. to these bastards, premium clones of merlot, grenache, syrah, mouvedre, petite verdot, etc.
Gonna try the live electric wire next year.....run it just below the main cordons.