She's actually better with it now, doesn't do it unless asked...it just took some time! I basically just ignored her or told her to put her foot down when she did it without me asking for it, and after not receiving a treat for unsolicited behavior, she figured it out pretty quickly and got bored with it! So now she only does it when asked, and she only gets rewarded when asked too
It amazes me how fast horses catch on to things!!
That "please" trick you mentioned sounds so cute! Do you have any video of your horse doing it??