I've never been sunburned like Mesa Arizona sunburned(I think I may have been in Tempe, I can't really tell the difference). I made a really tragic mistake while trying to hitchhike out of that place. It was 116 degrees and I sat on the only suitable on-ramp I could find where a person could pull to the side to get me. Zero shade other than about a 3 inch shadow from a street light post that I had to move with as time passed to keep a small section of my body under. I'm a huge guy so a 3 inch strip of shade doesn't do a lot.
I made a really nice sign, I smiled and tried to look like things weren't so bad. I turned different colors for these people, pulling out all the tricks. 9am, 10am, noon, 2pm, 3pm I have never seen so many cars pass by me while hitchhiking, it made me hate the people of that city on that day. Many mistakes were made but the worst was the assumption I kept convincing myself of; Surely, somebody with a heart is going to understand how badly I'm roasting out here and someone is bound to pick me up.
I never got a ride out of there by hitching, learned the next day there's a shuttle to Flagstaff. I ended up with huge puss filled blisters that rose from my skin about 3/4 of an inch in height, about 1&1/4 inches wide and roughly 3 inches long on the worst areas and smaller clusters of puss blisters everywhere else. No sunscreen, no real shade. I don't think I'll ever even enter that state again if it's not winter. Absolutely miserable summers in AZ.