It was actually a part of credits for P/E when a was in college. They would provide a gun or bring one. I brought my own one back when a shotgun was no big deal in a dorm room.
first time a shot trap was 1974. it was my uncles gun hanging over his fireplace. he gave it to my dad and i shot it on weekends. when he passed, it became mine. an old iver johnson hercules 30" sbs. it use to fold my ears back.