If you think that's weird wait till the fish use your legs as a current break and continue feeding . Happened to me a couple of times down south on the San Juan, combat fishin at it's finest, about freaked me out the first time, big assed juan rainbow takes up station just downstream of your knee deep legs and starts to feed on stuff kicked up by you and the fishermen upstream. Apparently that's how you can tell who's the rookie on the San Juan, they're the ones standing still,not fishin', lookin' slightly downstream with their mouths hangin' open.