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The words "My kid could've got killed" never appeared in an episode besides the opening of each show. In season 1 episode 1 entitled "Dangerous Cash" at the very last few seconds of the credits Les is yelling at three of his security guards and he says "Seth could've got killed." My thinking is the producers of the show didn't show us his whole rant because like I said it was the very end of the credits of the first show from season 1. I looked at both videos a while ago, the one from the end of "Dangerous Cash" and the opening credits video. In both videos Les' former head of security named "Robo" who I believe Les fired in season 1 is standing in the same place in both videos while the other two are out of the cameras focus. Les often wears similar clothes but in both clips he is wearing his black leather jacket, a white t shirt, and a gold chain. So I believe Les yelled at them for a good while which we didn't see because the show ended and said "My kid could've gotten killed" and the producers used that in the opening credits instead of the "Seth could've gotten killed" line.

Kids Hardcore

I remember seeing that scene but I cant remember which episode its from. but someone was threatening them and thats why he said it. I know it was in an episode because when I saw why I remember thinking that it wasnt that bad and they most likely wouldnt have been killed lol

None of the episodes it's just for show so that more people will watch it. That scene is even why I started to watch Hard Core Pawn.