Personally I have not but I’ve practiced! And if I came across to a situation that a person needs cpr I would do the assessment, size up the scene, tap shout tap, call 911, check pulse and watch the chest rise and if it doesn’t rise the start the cpr, call someone near to grab an aed if necessary and available to you. And since I’m certified I would definitely be up to the task
operant conditioning is the use of reinforcement or punishment to get the desired behavior. If you reward your dog with a treat every time it retrieves a ball or stick - it will come to associate the retrieval behavior with a positive reward.