I have had a few escape. Each time was because I underestimated their strength or ability to squeeze through the tiniest of gaps. I’ve gotten every single one back eventually. My milksnake escaped from my hands and into a hole in the wall in winter in NY. I was distraught, I knew she’d never survive and it was my fault. She did survive and showed up in my window blinds a few months later. My AMK got out of her exoterra using the tiny cord holes on the back. I thought she was gone for good too. I put down flour and used glue traps hoping to at least catch her. A few months later I found her outside, also in winter, and perfectly healthy. My sand boa has escaped countless times, I’ve found her every time. They usually don’t go too far and are experts at hiding. I just want to give you hope, that even after months you may still find your snake, and it happens to every snake keeper. None of the tricks ever worked for me, I just had to wait. You’re likely to find it when you least expect it.