Feeding time Qs

[SRMD]

Hi guys, I'm wondering how long you leave dead prey in with your snakes? Maybe I'm lucky but this hasn't happened before, I usually hand/tong feed my balls and they take the prey and coil on it instantly and I leave them to eat but tonight no interest in the f/t I always use and also with fresh but dead, just a lot of younger flicking. So I'm leaving the food in there but it's been about 2 hours and nothing. Should I just throw these away and try again later or leave the prey in a while?
Thanks

I leave it over night, if it hasn't been taken in the morning I take it out and dispose of it.