At our store it's an automatic final if you leave money unsecured...with a few exceptions.
I once accidentally left the leftover change fund bills on the counter next to the register all night. I found it the next morning. I should have been put on a final, but so should have the closing LOD from the night before who didn't catch it when we did our check when putting it in the safe. Since she was promoting to STL, they didn't want to get her in trouble, so that meant I was off the hook. ;-)
About a year ago, I was over at photo with my gstl and discovered a start bundle sitting out on the counter from the night before. We both knew who the closing GSA was from the night before (not me). He just groaned. But I also know that she was his pet, so he covered it up for her and nothing ever came of it (otherwise she would have been gone when she was put on a final for always being late a couple months later).
We have a cashier who I will give her change to, and she will stick it under the drawer with the coupons and then forget about it...which makes no sense to me because she will hound me to death for that change until I give it to her. I usually have to tell her several times to add it, and she always apologizes for forgetting or being too busy. She's been known to leave for break, lunch, or even go home without adding it. Well, this past week, she went on lunch, and I discovered didn't add it...again. So I took the money back with me (I was covering guest services at the time). She came over in a huge panic that it was gone. I told her I had it, but we would discuss it later.
I gave it back to her and told her next time I caught her doing that, I would let ap know, because I was not going to be put on a final for her not securing the money...and she was going to have to deal with that on her own.