My son went out for a haircut a few years back. He was on leave from the RAF. He was gone ages I wondered why. When he eventually came home he was very upset and shaking, he had seen a man collapse and gone to help with CPR. , he did his very best but the man could not be saved ,, He was a local man and his wife managed to find out where we lived , she came round to thank my son and she said it was very comforting to know her husband had not died alone , It upset us all for days.
Everyone should know how to perform CPR. Never know when it’s needed ,