You know, I've never had too much of a problem hauling the horse trailer. Of course the monster truck and the big blue wall behind it are a bit intimidating, lol. But hauling hay, OMG. Totally different story. We have been baling our own hay for years, and years before that we would go get it ourselves, and the number of idiots that come out of nowhere to pass us or cut of off is crazy! We had one guy almost run us off the road and we ended up losing half a trailer of square bales in the street trying not to hit him. Even with them strapped down, the force was enough to pull them down. Hubby always says he wants to get a big loud train horn mounted on the car. That way anybody that cuts us off will think they are being run over by a freight train. May not fix them, but sure would scare the crap out of them.
We also have a big issue with bikers around here. They ride in groups of 20 or 30 and we live on a road with a lot of curves, so when you come around a bend you are right on top of dozens of bikes, riding 2 and 3 deep in the lane, which they aren't supposed to do. Of course, if they didn't, the line would be a mile long. One day while hauling in round bales, we were stuck behind two guys riding side by side, and just tooling along at a slow pace, chatting. We tried twice to pass them and the outside guy would swerve over each time, so we couldn't. Just being a jerk. We'd finally had enough and just went. We were as far into the wrong lane as we could get. The bales were sticking over the edge of the trailer and the outside guy ran into one of the bales, then ran into his friend, and they both ran off the road. We slowed down long enough to see them both get up, and then went on our way. If they had been single file, like they should have been, they would have had several feet of clearance.
Sorry to interrupt, but as a biker myself what you did was extremely callous and you could have potentially killed one or both of those bikers. It sounds like they were in a staggered position, one on the left of the lane and one on the right of a lane, a few feet apart with one being just slightly ahead of the other. This is a CORRECT way for bikers to ride in groups. You say everytime you tried to pass he would swerve over? Could this be because the rider didn't think it was safe for you to pass on that part of the road? Even if he was being a jerk, when you did pass why on earth did he manage to hit any of the hay bales? I'm positive he would not purposely ride into them, so that would mean you were A.) in the other lane, B.) Tried moving back into the lane too soon, C.) had a wide load that would have hit the bikers no matter what unless they were in a single file line. When the bikers crashed you just slowed down then left them? You understand that in most places it is illegal to leave the scene of an accident you were involved in. One or both of those people could have been seriously hurt, crashing a motorcycle going at any speed is enough to break legs or give a concussion.
IMHO You put people in harms way, even if the biker was an arrogant prick your actions were uncalled for and could have killed someone. Bikers don't have even 1/3rd of the protection a car or truck offered a driver. They HAVE to drive defensively because if they don't it can put their life in serious danger.