Bingen marina drama! I would have been annoyed too, but probably would have just chalked it up to people being idiots and moved off.
After 2 days of a lovely float trip on the river just east of there I had a little incident on my way out. After not seeing a boat for almost 2 full days I was rowing out a little late, so I was pushing my way down stream when I came upon the pack of guide boats about 2 miles from the ramp. I pushed past most of them but the last guy pulls anchor right on front of me and starts rowing like hell right next to me. I wasn't pushing super hard, just enough to get up my momentum. After a minute or two of rowing next to each other I just had to look over and ask if we were racing? He then decided to fish one more spot... gotta love that pack mentality.