He'd thought about it a few times, but he rarely was so slow that he got hit in the face. The usefulness of a mouth guard wasn't lost on him - he'd seen quite a few knights and some of the beginning monks get punched or kicked in the face, and he did prefer all of his teeth in one place. However, the only time he'd use it would be in situations like this, and the thought that he had similar situations often enough to warrant owning his own mouth guard was thoroughly depressing.
"Thanks," he said, taking the guard from the other man's fingers and promptly placing it in his mouth. He immediately clenched his teeth around it and tensed his body. He wasn't sure if that was going to be helpful or not, but it was hard not to allow his body to stiffen, knowing exactly the kind of pain that was going to be ripping through his shoulder, chest, back and neck momentarily. For one joint, the pain that radiated from it was killer.