Mad respect to Barney Miller. Whenever the character comes home, the first thing Hal Linden has him do is take out his service revolver, unload it, lock the bullets away in a high cabinet, and then lock the gun itself away in another high cabinet on the other side of the room. Just something he does while having whatever casual, "honey, I'm home" conversation the script offers. I don't think I've ever seen *actual* gun safety practiced like that on TV before or since.