When Will They Ever Learn?

Our new home's barn came with MiraFount stock waterers that can be accessed from the paddock or the pasture, with another unit in the stalls. The automatic water unit has a large plastic 'hamster bottle ball' that can be pushed down to access the water.

I have been jamming the ball to one side with a small stick of wood, so that the boys get used to getting their water from the watering unit. However, they often dislodge the wood and have to deal with the ball.

Watch (and listen) as Pippin (foreground) tries to get a drink:

Uh, I guess that Doc (behind Pippin) doesn't have much confidence about using the new-fangled watering hole! (And some people say our horses don't understand us!!)