Street vendors

Now I just finished a book Sarah gave me by some dude from Calgary, Alberta (Marcello Di Cinto) called Harmattan. It's a guy who went a volunteered in Ghana I think and he travelled West Africa for ten or eleven months. It was interesting, but a little bit too much for me. I think it was a little bit pompous. I am not sure why, he is a fascinating writer who had some amazing experiences.
It got me thinking about things you can buy for a quick snack in any given place. I think it is different in every different city you go to, and certainly there are national links.
In the book, the guy said everywhere you turned you could buy oranges. They were green, and the vendor would grate the peel off, and you were to bite off the top, and suck the seeds and juice out of the orange. Squeezing it, and spitting out the seeds afterward. He said the ground was littered with the corpses of oranges. It made me laugh.
In Toronto normally people bought hot dogs from carts along the road. In Moonbeam, ON I got poutine. In Kenora, ON it was the chip truck for french fries soaked in vinegar. In Paris it was pain au chocolat (croissant with chocolate), and in London sausage rolls. Ottawa you think of beaver tails. In Prague I had some kind of pig-in-a-blanket thing and cheap thin crust pizzas. There was a sausage wrapped in some pastry type thing, but not like London's. I guess the fish and chip places in England were more common than the sausage rolls. I was just broke so I had to go for the cheapest thing.
In Germany I was getting kebabs, or Turkish type donairs. What do you get in Edmonton? Fat Frank's? I guess so, or late night pizza. Saskatoon was an ice cream town for me I would say. In Roma it was some pizza and Tetra-packs of wine. I wonder if anyone has anything else.....?
Totally random, but something I was pondering for a couple of days. I guess that's half the reason people travel.