Similar story from God only knows how many years back (and one from a couple ago). In the first, 2handering on the Russian River in Nor-Cal and 'feel eyes on the back of my neck' sort of thing. Father and two young boys behind me on the beach (Sage 7136-4 in hand).
Wade back to the beach, chat and 'Would you like to try?' Kids were in the river in seconds. Both were banging out casts in twenty minutes. Didn't hook a thing, but they were 'In their own place' as they handed the rod back and forth.
Dad's quite comment to me? "How much is it going to cost me to get two of those things?" At that time, about $750-$800 dollars. I suspect he spent the money.
Last was a bit short of three years ago on the Bitterroot River. Working a 3wt 2hander (with minimal success for trout) and reeled in to get a drink of water. 'Old Fellow,' by every appearance to my "Sr." even at 69. My two old Dog's flaked out behind me, and his flopped out next to Sandy and Husky.
Talked about 2handers, he'd never seen one before, short of reading fishing mags. Asked if he had waders (no), but he just waded out into the river in his 'street clothing.' Guy was dead on in minutes; Dogs and I just sat on the beach and shared my lunch sandwich. Hell of it is .... he hooked three fish in minutes.........
I suspect, with a 1hander, this fellow was probably 'Magic.'