I went to a car boot one day last year and it was absolutely scorching! As I walked through the car park, I spotted a car with a blanket thrown over the back window and the front windows down slightly. I went straight over to the car and found a gorgeous black lab sitting on the front seat, quite sedate.
I put my hand into see how hot it was in there and it was horrendously hot. I didn't hesitate in squeezing my arm through the window, opening the door and getting the poor dog out. In the meantime, my other half went to fetch water. We covered him in cool water and tried to get him to drink some.
I rang the RSPCA but couldn't get through. I was just about to ring the police when the owner came sauntering towards us. He just wandered up and went 'oh is he alright?' all blasé... I couldn't help myself - all my anger came out and I made him feel like a Borrower in front of loads of people. He really didn't know what to say or do. I told him that if I ever saw the dog in that situation again, I would make sure he never had the chance to do it again.
He apologised profusely and made his way out. People can be so dumb.