I've been fortunate enough not to run into too many jerks while fishing but every once in a while you just find someone that rubs you the wrong way and who you would swear is just going around seeing how big of a jerk he can really be.
It was one of my first trips of the year to the C&R stretch of Rapid Creek. There were a few other people in the parking lot when I pulled up. My girlfriend was along with me to watch me fish. She's never fly fished before and I wanted it to be an educational and enjoyable experience for her. Several guys were standing around talking, 3 young guys and an older man. The three young guys gave the standard 'How's it goin?' and I gave the usual 'Good. Have any luck?' They seemed like nice guys. The older man however gave now greeting and promptly asked if I was from Montana State. I told him no and he said 'Well these MSU people have been taking over
my stream.' (referring to the 3 younger guys) I was a little surprised by the comment, but tried to be polite and set out for my favorite pool.
Now there is something you need to know about this section of Rapid Creek. It's a slow crystal clear section, and since it is C&R, the fish are not that spooky and you can catch them whether you are stealthy or not. I catch them all the time while standing in plain view....they're just used to the sight of humans.
Anyway, I was casting at the tail of the pool while my girlfriend was at the head, having a good time watching the fish swim about. Pretty soon I heard her speaking to the old man, but I couldn't really make out what they were saying. Not long after I had on a very nice brown. I called for her to come and see, but she didn't come so I released the brown.
Puzzled at where she would be, I went to see what she was up to, only to find her sitting in the parking lot. When I asked her what was wrong, she said that the man had asked her:
'Which direction are you headed?-'Up I guess.'
'Well I just want to make sure and go the opposite of whatever way you're going since you're scaring all the fish. If you had worn any other color shirt than white you would have been fine, but now this stretch is worthless.' 
I can tell you I was fighting mad. The guy had already been a jerk about people fishing on
"his" creek and now he was trying to tell my girlfriend that the fishing was ruined because of her. I wanted to give him a piece of my mind, tell him she had as much right to be there as he did. But my girlfriend said it was no big deal. Then I saw his shoes that he had left sitting on a rock and if it weren't for the better judgment of my girlfriend, that guy would have spent the rest of the evening fishing for his shoes.
The funny part is, I had a great day on the "worthless" stretch of stream that she supposedly ruined by wearing a white t-shirt. I would have loved to smack that guy upside the head with that 20" brown.
I guess the moral of this story is that as fisherman, we need to be aware of what kind of impression we make on others, especially new fisherman. I mean, do we really want to come off as snooty self righteous jerks who would rather criticize a person than help them? To me that kind of behavior is uncalled for and I'm sure it has accounted for more than one would be fly fisherman walking away from the sport.
I'll get off my soapbox now.
-Cody