I used to shop at my two local dollar general stores all the time. I would do their 'Buy $25 get $5 off special" every time they had it, often doing it twice in one day, getting $50 total for a total of $10 off.
Then, once when I was in the store, this one lady manager acted like she thought that I was stealing and would stay with throughout the store making sure that I didn't rip anything off. Obviously, like right next to looking at me face to face angrily and suspiciously. So I stopped going there for a real long time. I figured I could go to the other Dollar General store near me, but found out that she works there sometimes too and she did the same thing.
So, altogether, between both stores they have lost hundreds of dollars in my business.
I have returned a very few times since then and haven't run into this woman, I don't know if she still works there, but after having been gone so long i was totally struck by how "Icky" their stores are and they have one register with a real long line with like 10 people waiting. I was going to get something, but wasn't worth waiting through all that long line, and decided to get it from somewhere else." DOLLAR GENERAL, YOU DON'T HAVE ANYTHING IN YOUR STORE WORTH GOINGTO THE PEN OVER!"
I liked: When i used to shop there years ago when they were nice.
I didn't like: Followed and watched to make sure i did not steal anything.