My horse Tuffy gets cranky sometimes and bucks going into a lope. Then I get cranky too and work his butt.
When he starts I lean back into the bucks and load the stirups so as not to go head over tea kettle, and yell "NO!!!", wack him with the strap, turn him if I can, and settle him down, after I've kicked him a few times and cussed. Then I make him do lopes and sliding stops and turns until he gets sweating good, really turn up the heat, work his butt. Then I get off, tell him he is a good boy, and that I still love him. This seems to solve the problem.
One time we had a fight and I'd slugged him in the ribs for kicking at me when I was practicing bareback mounts.
Next day I could tell he was still out of sorts. I always saddle him untied, and when I cinched down the saddle and reached for the bridle, he walked off 15 feet and went into a full scale rodeo bronc, big hump backed bucks, steam coming out his nose and bellering. He then stood there quietly breathing hard, so I bridled him, gingerly got on, and he was fine after that. Felt like he was showing me what he might of done, but didn't, and you know I felt kind of lucky he is basically a good horse.