Freezing!

The great thing about working in a store devoted to freezing food is that I actually complain about being cold when the weather forecasts temperatures around the 29 degrees celcius area. The bad thing about working at M&Ms is that people come in, stand over the cooler, blatantly not planning to buy anything and just leave.
Today business was alright until an hour before my shift is over. People usually come in spurts and this spurt was HUGE! We were trying to help about 5 customers between the two of us and one of them wanted to buy 8 boxes of burgers and after I cut open the tape of the cardboard box to show her what it looked like, she MADE me tape it back up before she took it. I kept saying, "It doesn't matter, it's frozen anyways." And she kept making this obviously stupid argument that she wasn't going to eat it for a while so she wanted it to be taped back up. IT'S FROZEN! It's not going to go anywhere as long as you stick it in a freezer! I got so pissed off that when I went to go pick up some more boxes from the giant walk in freezer, I bumped by head really hard on the shelf so not only was this customer pissing me off, I had a killer headache.
After that customer, this other customer came in and I could tell that she was one of those jerk customers who think they're better than everyone else. She could obviously see that that first customer I was helping was paying so she had to wait in line. The other guy working at the time was doing the cash for the tape-lady and when I gave the jerk-lady her box of potatoes, I went off to go help another customer. The jerk-lady starts bitching to the other guy about how I was helping her and then I went off to help someone else. The tape-lady had like 9 boxes of stuff so the line was getting a little backed up and the jerk-lady was just cussing off to how we weren't helping her. How could I have helped her more?! I gave her her stupid potatoes and now she has to wait in line, there's nothing more to it.
After both of those fabulous customers left, Andrew (the guy working) told me that the jerk-lady always demands to be treated better than everyone else and that he hoped to one day tell her to f*ck off. I don't know people can survive working at retail for more than a summer time. There are so many horrible people out there that I just want to bitchslap all of them.
Here's the dogma of M&Ms:
1) You come in, we say "Hi!"
2) You ask for the food and we get it from the freezer for you
3) We show you the food and you say, "that's great!"
4) You pay for it and we say, "Have a nice day!"
It's so simple! I don't know why people have to make it so hard! I've heard stories about how customers have tried to go behind the counter to take out the food themselves so they can see it. The counter is there for a reason nitwits.
This reminds me of this other customer who was in such a hurry that she literally reached over the counter and tried to rip the receipt herself from the moneris machine. Earlier, she also tried opening the box herself but to no avail since it was securely taped and needed a box cutter to open it. I even told her to wait a couple of seconds while I took out my box cutter. Ugh!!
Have you noticed how all these bad customers are women?! I don't want to send women back like 50 years but seriously! Women seem to be the sex that bitches more about the smallest things.