@Ilovegreentomatoes YANBU at all!
An ice cream van comes around our way 3-4 nights a week from March through to October. Not the same one, but any one of 4 or 5... We never go (no kids at home for quite a while.) But back in May, we had just had a spicy pizza, and both had a sweet tooth, and we heard the tinkling of the ice cream van, and I said 'oooh let's have a 99!' 
Shot outside with a fiver in my pocket, and said 'two 99s please, with a flake - just single cone ones.'
£5.40!!! £2.70 each. I nearly passed out. Maybe I am not up to date with prices, but fuck me!!! I said 'sorry I only have five pounds,' and he said 'I'll wait while you pop back to your house, there's 3 more people coming here, so I'll be here a few minutes.'
So I had to walk home with the 2 bloody ice creams, (melting as it was hot!) and get DH to hold mine while I went back to the ice cream van. He didn't even acknowledge me either when I got back, so I waited 20-30 seconds and just pushed in front of the woman he was serving and said '40 pence!' stuck it under his nose, and went back to my house.
It was only 2-3 minutes of time to go to my house and back to the van, but by the time I eventually got my 99, it had pretty much turned to shit. I was so fucked off that I never went to him again.
tl;dr Bit of a rant sorry!!!