Should I be worried?

Today, I went shopping with Mum to Sainsburys.
Although, that doesn't sound very exciting I had an awesome time.
I found this machine thing (I've never seen it in a supermarket before), then once you've packed your loose veggies (or fruit) in one of those plastic bags you put the bag on the silver weighing bit. Then there's a touch screen where you select the item that's in your bag, it then weighs it and prints you out a little sticker that has a bar code, prise and weight on it to stick on the bag!
I was going mental over it, I think I could have even possibly put myself on the device. I can't believe how mad I got actually.
I must have looked really strange running backwards and forward towards it with different items to weigh and a great big 'wow, awesomeness, cheesey, AHHHWOW, woot, stupidly manic' smiley look on my face. I can't remember getting any strange looks, but I guess I was so mad I wouldn't have noticed!
I couldn't not post about this, it was such an amazment to me it would be hard not to.

R

X

PS: Should I be worried about myself? Is that kind of thing normal in a shop? I'm talking to all the people who are looking at my blog, even if your all the way in America or Australia please tell me if you have that sort of thing in a supermarket.