The kind of thing that snakes can get "stuck" in are those cholla logs (hole in the middle) or anything made with a hole they can go thru where their middle
can get stuck* & they cannot back out because their directional scales catch, like with bird netting & some kinds of garden fencing outside. They shouldn't be
able to get stuck in a hide that is open on the bottom, since even if the doorway is tight, they'll just end up lifting the hide up over their body. You also want
to avoid using most things made for tropical fish to swim into, no matter how cool they look...like castles, etc.- because they often have dangerous tight spots
plus very sharp projections inside that don't bother swimming fish, but that would cut up a snake trying to wedge in there. Good question...
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