My dad's first horse was an Azteca, big gelding. For some reason, the old owners could never figure out why, he just decided to stick his tongue out and wait for someone to try and grab it. Thus started what we dubbed the tongue game. When we bought him, the previous owner told us that he loved to play that game, especially when he was bored. Lo and behold, I'm standing there, and he bumps me with his head and just starts sticking his tongue out. He stood like that until I reached up, then he sucked it back in his mouth, and then did it again. He was quite the strange horse.
My Arab came relatively unhandled, and kind of wild, no trust in humans, never had much done with her. Well she decided to slice open her hind leg, required 7 stitches when all was said and done, and of course the vet wrapped the leg in WHITE vetwrap. She was completely sedated and out of it for the whole thing, as he had so sit underneath her to sew up her hind leg, and didn't want her moving AT ALL. So I put her back in her stall, and walked up the hill to just sit and keep an eye on her while she started waking up. As soon as she realized something was on her leg, she started hopping around with her head turned as far as possible towards the leg that she was then holding in the air. Keep in mind she's still really sedated, and "spinning" in circles looking completely drunk. I finally had to actually take her out and walk her around for a bit, but it still took a few years before she stopped freaking out when boots or polo wraps were put on. It was just so funny watching her all sedated trying to run in circles on three legs trying to figure out what the crazy white stuff was.
My thoroughbred was trained to Grand Prix level in jumping, so was quite used to jumping huge fences. I was not, I still was not quite comfortable at 3' but we wanted a horse I could move up on. In pony club one day, we were doing gymnastics, so we had trot poles up to a jump line. It was supposed to be 3 trot poles to a cross rail bounce, then a 1 stride to a 2'ish vertical, then a 3 stride to a 2'3" oxer. Well my mare decided AT THE TROT to jump all three trot poles, and the first two fences (the bounce) as one GIANT fence, then bounced to the one stride, then one strided the three stride. Apparently it had been quite a while since she'd done trot poles, and she needed to be reminded that they were for trotting over NOT jumping over. Same horse in one lesson decided to try and duck out at the last minute in front of a 3' to 3'3" oxer, but was so close that she ended up having to jump over the standards instead. They are about 5' standards, and let me tell you, I was NOT happy. I already had to steel myself for going over a 3'3" fence, and instead she turns it into a 5' fence. My trainer just stood there and was like "well I guess she has NO problems jumping big" now go try it again and don't let her duck out". I was just like seriously, I am supposed to try and take her over it AGAIN. I don't wanna jump the standards again. We did it fine the second time, but by then my nerves were completely shot.