This happens to me on a regular basis and its a little odd,lol. I own a 4 yr old gelding, and it seems that just about every time I pet him he drops, and not just a little. He drops the whole way, the turd is good about doing it in pics too,lol. I also work with a few stallions and while its not so common with the 10 yr old stud the 2 yr old is REALLY bad about it,lol. Last night I was standing with him while he ate his hay and scratching him and when the BO and her daughter walked in they said,"Uhhh, Jen,...he's....yeah". I looked around and he was dropped, belled out, and bouncing. I know its most likely because it feels good(I have long nails) and they "love" me

, it doesn't freak me out or anything but it can be a bit....disturbing. Anyone else have this effect on the "boys"?