Ive had two.
1. The first one was over the first bull I ever shot. My buddy was with me and I shot a bull broadside at a little over 100yards with my rifle. He dropped right there. While we were gathering up our stuff and slowly making our way across the ridge, this guy comes charging up the hill to the elk. My buddy says "this guy is going to try to steal your elk". I thought no way.
We get to the elk and he had already bent down and slit my bulls throat. This guy was probably late 60s but was an absolute giant Texan, probably 6'4 to 6'6. The guy says "you boys like this elk I just shot?" My buddy being a hot head immediately starts yelling at the guy. There was a lot of back and forth for several minutes. This guy kept sticking his knife in my face (I think he was more talking with his hands, not really threatening me) I asked him twice to stop putting the knife in my face and calm down. He did it a third time so I took two big steps back, racked my rifle and told him that was three times and there wouldn't be a forth.
Mind you this is my first big game animal so I have zero idea how to handle this situation and we were both in our young 20s. I was so frustrated that I was telling him that I know he didn't shoot it but I don't care and Ill go find another one. Well at this point another hunter in our group who was also in his 60s and had hunted the area from childhood had made it there. He said "we are going to do this the old fashioned way, you both are going to tell me where you shot from, where you hit him and we are going to skin him out and see who's bull he is." We both told our side and then skinned him out. There was only one shot broadside from where I was in that bull and no other wounds. Once that was clear the guy finally calmed down, changed his attitude, congratulated me, and helped us finish up. While cutting him up the guy actually cut himself on my bullet in the offside hide, karma I guess.
To this day Im still not sure if the guy actually thought he shot it or if he was just trying to steal an elk from some young guys. Later that day he ran into yet another guy in our party and told him "I shot a bull this morning at the same time some kid did. We flipped for it and he won." So he obviously wasn't an honest man. Worst part was I never got a picture with my first big game animal but I look at his rack everyday so.
2. Was in the same unit two years ago during 2nd rifle. Very cold day and we were hiking out near sunset. We had just come down a very steep ridge on the trail and were meeting up with the ATV trail.
We entered a large clearing and were walking across it when a shot cracked off right above our heads. I hit the deck and started screaming. I looked up and saw an ATV at the other end of the field but no person. We kept yelling and eventually stood up and started walking towards the ATV. At about the same time I realized there was somebody behind it using the seat as a rest, he shot again right over us. This time we were a lot closer and I threw my pole at him and hit the atv. He finally realized we were there and stood up.
It was a kid maybe 17 or 18. I walked up quietly and asked him to put his rifle down. The second it was on the ATV, I completely blew up. I honestly don't remember most of what I said but I remember when my friend was holding me back I was screaming that hes lucky I don't break his rifle over the ATV and drive it off leaving him there.
Apparently, he said there was a bull above us in the brush and he had no idea we were even there. Seems like he had buck fever and never even heard us yelling before the second shot. The kid looked totally shook up and really scared. Luckily for him he was apologizing up one side and down the other and saying nothing but yes sir. I'm definitely no tough guy and I try to treat everyone with grace, respect, and help if needed. This incident totally got me though and I was completely out of control because Id never had someone shooting directly at me before.
We left, halfway down we ran into his brother who stopped us, he told us his brother had called him and told him what happened crying his eyes out. He apologized profusely and said their dad was one of the county sheriffs deputy and he was in a lot of trouble. I figure that kid will probably be super careful from now on.
Other than those two, every hunter Ive dealt with has been awesome, every guide has been a bit of a d bag, and ever cattle or sheep herder hasnt spoke english.