Rambler was the first name that popped into my mind.
Moreover (this was the name of a friends dog. whe got it from a story of 2 little boys listening to a preacher tella story about a dog and got confused when the preacher sai "more over, the dog blah blah" thinking the dogs name was Moreover)
Any type of gun. lol.
Handy (or hand, as in ranch hand)
He looks like a Paulo to me :) super cute guy! His personality sounds wonderful.
"Equine-facilitated therapy employs a form of biofeedback for practicing self-awareness, emotional management, and relationship skills that human role-playing exercises and discussion groups cannot begin to access." Linda Kohanov (The Tao of Equus)