I've been keeping & also breeding some corn snakes for literally decades. (I currently have 5 corns, & 11 other rat snakes too.) I wonder where they got the idea to feed an adult colubrid snake every week? Maybe because they handle her for education, they've been trying to be sure she's "full" & won't bite or scare anyone- just my guess? But if so, that's misguided. I've done many programs with my snakes- even some where they meet (& are handled by) "the public" with no issues ever, & fyi, my snakes are hungry (due to be fed) when I take them. You just read that correctly, lol- I want them "empty" so they don't poo on me or anyone in public/programs. And I've never had any snake of mine bite me or anyone this way- they "change gears" quite well, they understand they're not being fed once I've picked them up. Even if they were hungrily chasing my motion thru the glass right before I took them out.

I have some very large yellow/Florida rat snakes with monstrous appetites to match their size, & one time I took 2 of them to the local library for a kid's program, & thought it might be interesting for the kids to watch them eat. So I took 2 thawed mice with me in a container, & after I handled the snakes a while, I put them each in their travel enclosure & offered them a meal, thinking surely they'd pounce- since I knew they were hungry. They actually hesitated & finally "accepted" the prey, but they were far less than eager. Then I understood- they were in "handling mode".

You might want to have them read this thread? Good luck.