Just like normal, you mean.
People would be looking behind things and throwing all sorts of items all over the store everywhere!
My craziest memory was BF 05, I got to the line at Staples about a half hour before they opened, I was surprised at how mellow everyone seemed to be after the mess I'd just come from at CC. Was I ever surprised when I got inside the store and saw these people clawing for the 1gig jump drives they had that year. Some poor sales associate came out of the back with a couple more boxes of them and had to fight his way through the line so he could dump them in the bins. I didn't think he was going to get his hands back, those people went CRAZY grabbing at him! Finally, someone shoved him out of the way so they could get through and he just stood there looking a little dazed. As I got past him I waved my hand in front of his face to make sure he was okay, he said something that indicated this was his first BF, and I'm pretty sure he quit his job on the spot. I would not have been surprised if he was bleeding. There's just no excuse for that kind of behavior.
Last year's favorite memory was standing outside of Joanns at 10 'til 6, I was the only person in line. Next door is an Office Depot, and I think those people had been there half the night. We were shouting at each other, I kept trying to get them to come get in my line. Didn't work.
Another fond memory of last year was DH standing in line at Menards while I ran around the store collecting stuff for everyone in line. I'd come back with some coffee cups or something, and someone else would want one. When we were in line next to the electronic games we started passing them back so that everyone who wanted one could get the one they wanted. The sweetest thing was when two ladies wanted the same one (last one) and started arguing that the other one SHOULD take it, because they each didn't think they really needed it.
I do try to carry candy for cashiers, I usually start out with a bag of mints or mint-chocolates. I've never had one turn me down yet.