Hey JKH......yeah, they are not happy campers at all, and is dangerous. The first time I set up the camera ambush specifically for the Hairyman, I was not baby sitting the one camera I had set up. It was in a very remote location, and whatever tripped the camera removed the film canister out of the camera, pulled the film out, put the film canister back in the camera, back in the camera box, and replaced everything back to normal. I retrieved it the ext morning, the area looked totally normal, took it home to process the film, and found the empty film canister back in the camera, no film, and a large bite mark on it. I tried for weeks on other film canisters to duplicate the damage using a variety of tools, and couldn't come close, plus the damage REALLY does look like a large bite with flat teeth, and would break my teeth if I tried.
The 2nd BF Camera Ambush I was baby sitting nearby, and will never ever do that again, no way. After the flash, I was too far away to see anything, but there was quite a scary verbal response, terrifying actually, and I went post hast the opposite direction. Was only using one camera and lost it that night, but they/it didn't find the game trail buried triggering part, which is the hardest to make & costliest part:)