JUNE 29 was one of the hottest days of the year so far, and I was distressed to see a dog left in a car.

It was parked outside a well-known supermarket in the Harrow Weald area. The security guard there was helpful and went outside to check on the dog, and he also became concerned for its welfare.

Even with windows open, a stationary car soon becomes an oven, so please don't leave dogs in cars, even for the shortest time.

VALERIE BRAITHWAITE Harrow Weald

Via email