With an Icelandic horse biting your bum.
(a companion most obtrusive)
Yes, my posterior was the one being bitten. And no, there was no reason for it to bite me, other than pure cussedness. But it didn't take long for the horse to come to the sad realization that it was not in charge, and that I'd been around horses. So we did ok together, with me crooning sweetly to it, "You're a really baaad horse."
It was a really good day, riding between lava flows and birches. On a naughty, bitey horse.
Go listen to some great music: "Spirit of Radio" from the album Permanent Waves by Rush.