Turn the lights off and leave it for an hour or so. Provided the snake can't escape that is. If it hasn't eaten within the hour it probably isn't going to.
Like Robin said, you can leave it overnight. When I was feeding F/T to my first BP I would leave the rat near the entrance of the hide if I had to leave it overnight.
Like Robin said, you can leave it overnight. When I was feeding F/T to my first BP I would leave the rat near the entrance of the hide if I had to leave it overnight.