omg that why some rides have weight limits on them. I love how he like slipping out of seat and gets his neck caught on the strap. i'm guessing this a ride that spins you in a loop. So, his greater mass has more force to act upon and gives him a higher centrifical force that forced him out of his seat. in other words he was too big to be on the ride.
as the second one: fat people + moving vehicles = funny outcome.
third: ouchy. and to add some insult to injury the ball hit in the face a few times.