I think its no excuse if you are a car enthusiast or not, i could learn the trim levels spec pretty much across the models in a few hours easy, yeah id make the odd mistake but if i was unsure how easy is it check the broacher. Its just so unprofessional, i wouldn't pay them in buttons, their are good ones but few and far between. I had one once telling me the GTI in the showroom was diesel, i said it was petrol, he insisted it was diesel, i just agreed with him in the end just to shut him up
Knowing everything in Currys is a bit different, thousands of items on sale.