Thank the Light. If there's one thing that keeps me from using my bodyguards, it's how they get in the way of literally everything I want to click. The problem is even worse if you play a pet class because your bodyguard tends to stay right behind you instead of to your side.
While exploring my garrison on the patch 6.1 PTR, I was happy to find a vendor in my Barracks that sold me a Bodyguard Miniaturization Device for the bargain price of 250 Garrison Resources (I would have paid 10,000). As you can see from the picture, it shrinks your bodyguard down to a more manageable size that should never get in your way (plus they look really cute mounted up at this size).
The device lasts for 1 hour and has 1 hour cooldown. Best of all, it does work if you dismiss and summon a new bodyguard as the buff is placed on you. If you still haven't joined the bodyguard club, you really should.