Because they hold the reins!
You grabbit.
Just one. He holds up the bulb and waits for the world to revolve around him.
Mick Jagger sings, "Hey you, get off of my cloud.. ", while the Scottish Highlander yells, "Hey McCloud, get off of my ewe!"
A cloud.
To change his jockeys.
Jockey straps.
Looks like rein dear.