To the hog panel colony trap idea it has been done. Works well Clint Locklear of predator control group and wolfernation has a YouTube video where he caught a beaver and otter with it. But his trap was 6 feet long super heavy and combersome to pack. He also built another one with clear doors and caught otter with it. I also remember someone on trapperman using hog panels and triggered non spring assisted doors as beaver traps and he swore by them
Yes it would seem for those people not named Kirk Dekalb, there aren’t many original ideas

no offense meant to other inventors