I released one once in an open field and crows swoooped in to attack that defenseless creature.
O, the horror of it. Don't look now but the vicious and cruel carnage ogoing across the great green lap of Gaia as predators feast on the living flesh of the preyed-upon is of such an enormity as to begger the imagination of the most ardent Stephen King fan.
You better run out there and stop it--now. But don't use force. That would merely be surrending to predators' way of solving problems. No, you must reason with them. Shame them as a last resort if you must, but don't harm their self-esteem.
Then shoot them in the trap and discard their bodies in an open area. The crows will take care of them.If you let them go live, they will be right back, or will move in at your neighbors' -- not a neighborly thing to do. Or give them to a wildlife refuge, if they're stupid enough to take them.
The same advice goes for racoons, woodchucks, and skunks. Skunks have to be handled at long distance. Throuw a tarp over the trap so the skunk can't see out, then hook a long chain to the trap and drag it to a pond. Immerse the trap and skunk in the pond and drown it. Otherwise you'll get sprayed and you'll be sorry. The drown easily because they're afraid of water. Some old timers around here swear that the skunk will die of a hear attack if you just spray it witha hose while it is in the trap.
If you catch your neighbor's cat by accident, forget all the above instructions. Just open the door and let him out.