"Sure thing Professor Hale," Stiles said giving Derek a sarcastic salute before he moved down to the end of the line. He grabbed the cleaning ingredients Derek had obviously left behind and started on scrubbing the cauldrons. It wasn't his first time and it wouldn't be Stiles' last to clean cauldrons so he knew what to do. Maybe if he worked hard enough he would tired himself out that he wouldn't have nightmares. One could only hope.