I had an encounter with this a**hole on the Brandywine last night. Will start by saying that I was unfamiliar with the DHALO section before yesterday- I only decided to fish there because I had to attend a viewing at 4pm in Downingtown so I figured I'd hit the local water for an hour or two. Parked at Dowlin Forge and walked up the trail and into the water. Eventually I fished up to his property. Was on his side of the river when I first noticed the no trespassing signs, so I immediately crossed the water back to the trail side of the creek, where I was pretty sure I was legal. My guess is that I must've tripped a trail cam because in no time this guy was barking at me from up on the hill, telling me his property owns the entire creek, that the water isnt navigable, that I'm trespassing, he's gonna call the cops, etc. I tried to have a discussion with him but instead he quickly came down the hill and crossed the creek (in pants and shoes) and got literally right up in my face with his phone out. Started threatening me and calling me names and being way too aggressive for my comfort level. At this point it was clear that this guy is a lunatic and that the only thing to do was to walk away, which is what I did. He followed me up the bank, yelling that he'd see me at the parking area with the cops. I found my way back to the trail and walked up a ways and fished a little more before calling it a day. On my walk back down the trail to my car I noticed that some has put up signage directing anglers not to cross the centerline of the creek in the portion that abuts his property - only problem is these signs are on the trail so I hadn't seen them when I was in the water fishing upstream.
As for the fishing, the water was low and clear, there were no bugs and I landed one rainbow in a deeper run on a pink walts worm. Had a couple hits on a black bugger too. I won't be back.