I won’t bore you with another one of my lengthy diatribes.
It’s a scarecrow for the modern days (wow, that sounds so 1995). It only needs a 9V battery and your garden hose. It scans to a radius of 35ft over an angle of 100degrees. If it detects motion, it’ll instantly release a three-second pulsating spray of water, scaring the Jeevus out of most animals, including the mailman.