If they are the 6 inch ones then be warned that a larger skunk can knock his shoulders agaist the opening and cause the door to fall on him!!! Its happened to me a few times. But the work great for smaller stinkers. Just my two cents but I only use them for a last resort..
Mine are unlike the others in that the skunk can enter either end. You can set with one door down or both up. You can purchase with all solid doors, bar doors, or one of each. Bait can be hung on wire, used as a walk through , or placed in back of trap.
I have not had that reported with mine. The back door of mine that is maybe possible, but the front door cannot fall unless the trigger is hit.
We have many repeat sales on ours.