Only a small true story

I start to test my diy lifejackets in a public swimming pool, I saw a person in water who hold a disabled child in hands.And I saw that they leave the water during the wave period. Than I swam to them and ask the boy if he wants to wear a lifejacket? he wanted ,and so gave him one.After a short time the pool personal came to me and ask where they can get such wests, cause they never sawn this kid so happy!!!!!!.It was the first time he could stay in water during the Waves.And He dont get it out during they have lunch.(Sorry my english)