I bought a magnet for my gal. Should I attempt to get it in her or let the vet? I've never put a magnet in a cow before, so I would also need some directions. My heifer is very bonded to me, no fear issues, halter broke, but I don't know how she'd react to a magnet being shoved down her throat. I don't have a balling gun, but our vet would lend us one. Any opinions?