Doug, on Halloween I used a motion detector rigged to turn on my lawn sprinklers when they'd approach the front door. I used a laser to deactivate the hose when they were taller than 3.5'. I got tired of hiding in the bushes holding the hose. Any suggestions how to get toliet paper out of sweet gum trees and raw eggs off window glass? wink My lawn looks like the rough at St. Andrews and there is no more room to park another car. Besides, I ran out of cinder blocks to support another. Gil