А что они такого ужасного делают? ;-)
Привлечь их к работе бы...
Эхх. Если бы у меня была в детсвте возможность каникулы на ранчо проводить... это было бы просто счастье. :-)

LOL well, youre in for a long haul, the summer is just beginning...How about sending them to someone elses ranch (to some kind of camp)? Or better yet, as Tais suggested - put them to work! and if its reining - harness cleaning is a perfect indoor activity. Friendly competition cant hurt, especially if the winner will get a ehh... small monitary compensation ;)
Good luck

oops, I ment if it was raining, not reining...