Are you Steve?Watched it with my husband and 12 year old twin grandchildren down the shore.Knock off the You saw .I do know the grandchildren were making fun of the owner for complaining best part was him turning around to his wife.apologized on Good Morning American.Cad to his wife who had best reaction.
https://www.youtube.com/watch?v=G0E5oQvJoV4
Your grandchildren sound like they were poorly raised, without manners.