So, this is Brutus' second feed in my care. Now, I know it's not odd for BPs to go long periods of time without eating, but he's three months old and has only been fed twice, so I'm kind of eager for him to eat. Last week I tried f/t. He didn't eat it. This week, I got him the smallest adult mouse I could find. [no place around here has live pinkies or fuzzies.]

How long do I leave the mouse in there before assuming that he's not going to have some dinner?