Jonah Shreiner, age 17, was doing his homework one evening after school when he realized that the house was unusually quiet and his 18-month old sister was nowhere to be found. He noticed the dog door leading to the pool area was open, and he ran outside to find his little sister floating face down in the pool. The training he received just months before to become a lifeguard kicked in. He pulled the toddler from the water and performed CPR for an agonizing 4 minutes before she regained consciousness. Jonah’s sister is alive today because of his lifeguard training and quick actions.