If you plan on showing the horse anytime... Don't forget to densensitise him to umbrellas
you would not believe how many times I've been unfortunate enough to have a non-horsey spectator open up an umbrella right by my horse... HELLO!! (Thankfully my mare is pretty used to it being 25)
I bring random things out to Mitchell's paddock and let him see them, he's usually okay with me touching them to his nose etc so he can sniff them, but if he doesn't like me touching him elsewhere with it (eg butterfly nets
) then I put it up somewhere in the paddock that it will blow around and he see's it all the time. His butterfly net has been in his paddock two weeks now and after me pulling it down and touching him with it each day he is starting to get used to it.