I have an eat or starve philosophy when it comes to healthy animals and I haven't seen or heard of a healthy animal starving itself to death yet when food was offered consistently. If my snakes don't take their food from the tongs I leave the f/t prey item in the enclosure for an hour or two. If they haven't eaten it by then it goes to the next hungry snake. If your animal was previously eating f/t prey consistently I'd wait it out. If their temps are good, and the animal isn't losing much weight or showing other signs of illness, I figure they'll eat when they're ready. I had a BP that once went over a year without eating and he was just fine. I have a finicky albino carpet python that ate once when I first got her then didn't eat again for almost another two months. She was only 120g at the time. I kept offering food every 2 weeks and she eventually got with the program too. She's still a pita sometimes but she's definitely a more consistent feeder now. I've had kings go all winter without eating and even though I did offer a small live feeder to the kings after 3-4 months off feed that was years ago when I used to worry about them missing meals. Those days are long gone. Now, I'm a firm believer that the hunger ALWAYS wins in the end.