they look like they're about to shit their pants
"I probably shouldn't let you live. You seem to know just enough to bring trouble. But then you may well attract enough attention that my own enemies get caught in the violence. So I'll leave you with some advice. Do not call up that which you cannot put down again. Do not open doors or windows you cannot close. It is inevitable your Master will try to kill you, as you will eventually find it necessary to kill him for your own self-preservation. And lastly, ever assume your master is dead. Good day to you youngling, and beware Grandmother Spider."
and with that it is gone