My BP might die.. beyond worried.

[Bogertophis]

I've considered the different enzymes problem too, but the snakes don't perish if the prey just ate.
Rats and many birds eat grain, what if the bunny had a gut full of alfalfa?
Inquiring minds...

For sure the prey can be full of food (but also enzymes of their own)...I think it's really a matter of degree, & not all "organic matter" is created equal. Sticks & wood chips are not the same as pliable grass blades or lots of tiny seeds/or grain. Some things pass easier & some things make great blockages.