That's unfortunate businesses feel they need to do that.
They have to protect themselves, since the laws today clearly protect the criminals instead of the hardworking citizen.
Someone I know once told me a story. He and some friends were in a farm, inside a tractor barn, after they had finished the day, having some beers while they did some work on the machinery. Some criminal entered the barn and pointed a gun at them. Criminals feel emboldened these days, they know it's not often that someone will have a gun on them.
But there was another guy who was on top of platform inside the barn, right above the thug, so he just threw a metal rod on the criminal, who lost grip of his gun.
They quickly grabbed him and instead of apologizing or something like that, the thug started threatening them, saying that they didn't know who they were messing up with, that he belonged to some criminal faction and they knew he was going to rob there, so if anything happened, they'd know. Not only that, he told the guys they should let him go, give him their possessions and that way, he wasn't going to retaliate.
So they tied him like a hog, took him to the middle of some uninhabited woods, poured a jar of jam all over his body and tied him on a tree.
Nature took care of the rest.
But as sick and sadistic as it may sound, they'd probably have to live looking over their shoulders for years if they had let the scumbag leave. Because they do come back to get revenge, it happens all the time.