In the end, it was really no big deal. Monson's sister was fine and Sam was, too.
"We got him back onto our boat and gave him his ball, and all was good," Monson said. "The was his first swim of the day, so he could have been a little nervous."
Fortunately, that little mishap didn't put a damper on the outing. Soon, Sam was back to being a confident swimmer.
"We played fetch with him again in the shallows so he could get used to it and after that he was completely comfortable," Monson said.