RE: You can add me to the list....
Yep, I would be willing to bet that it was either a raccoon or a bear. A couple years ago, I set up my camera and went back to the same area about an hour later to cut some shooting lanes! Well, my camera was ripped to the bottom of the tree and my best friend said that it had to have been a squirrel. Well, when we got the film back, it was a bear. He rubbed his face on the camera, then hit it with his paw, then walked away!
This past year, I had my camera set-up in a spot that nobody visits. Well, a few days after setting it up, I went back and the front face of my Stealth cam was open! I thought "O great, somebody stole the film", well, it was there so when I got it developed, I found the culprit. A dang raccoon. He opened the face of the unit, but thankfully he didn't do any damage!