You know, by the detainees.
Read Part 4 of Patterico's interview with an Army nurse who was stationed at Gitmo:
The attacks on military personnel could be brutal, he explained:
We were told about one female medic who had to have major reconstructive surgery on her face following a detainee assault. She was too close to the beanhole (door opening) and the detainee was able to reach out, grab her head, and pull her face-first into the steel frame of the door, shattering most of the facial bone structure.
And:
I asked Stashiu if he had ever flushed a Koran. I meant it in jest, but he answered seriously — and provided one of the more interesting tidbits of all our conversations:
The only Korans I saw, or even heard about, being placed in toilets, torn, or thrown onto the tier were done by detainees. The guards and medical staff never even touched the Koran if at all possible. We always called for an interpreter (a Muslim one, not all were) or the camp librarian to handle any Koran.