Alistair made a small noise of disapproval. Why did people hit things anyway? What did it do for them? Maybe he would punch a door or something once he got back home to see if it did anything for him. Except that might hurt and Alistair was very much against being in pain for any reason.

"Not if you want it to heal properly but I have an idea," he said, murmuring the disillusionment charm and tapping the bandages. The bandages didn't disappear but they did take on the color and texture of the skin they covered, giving the illusion that there was nothing there at all. Which was the point of the spell, he supposed.