If you're too stupid to use the self checkout, get the eff outta my WAY

I was at the store today, and usually when I'm at a store where there is the option of a self checkout, I will take that option. Why? I don't know...maybe I just like scanning stuff. I always thought it would be fun to work at a grocery store when I was younger, swiping goods over that cool scanner...thing. NOW MY DREAMS HAVE COME TRUE! ANYHOO.
If you've ever used one before, you'll understand that MAYBE the first time can get a little annoying. There's a SLIGHT learning curve. That machine just won't stop nagging you. You scan one thing and immediately it tells you to "Place the item in the bag". Sometimes I'll have 4 of something, and I'll go to just keep scanning but the robolady gets pissed..."PLACE THE ITEM IN THE BAG". Ok...geez. So that might happen the first time, and then you learn that you scan, bag, repeat. That's...pretty much all there is to it.
...SO WHY ARE THERE PEOPLE STANDING IN THE FUCKING SELF CHECKOUT FOR MINUTES ON END? Seriously....what about the whole concept is that foreign? Scan your fucking shit, and put it in a fucking bag. Pay. LEAVE. There were 4 self checkout tills at the store today. One was out of order (of course), and 2 were occupied by DUMMIES who had to call the babysitter clerk over to their tills. If you're going to make the guy come HELP YOU then why didn't you just go to a MANNED TILL INSTEAD? Really--if you can't work the damn thing, get out of the way for someone who ISN'T a mental deficient to scan their crap and get the fuck outta there. GOSH.