Buy a sprinkler called the scarecrow it hooks onto your garden hose so you can put it any where !When movement goes on in front of it. It sprays the pattern you have set. About 20 feet area at a high pressure!! It has a motion detector in it .Runs on a nine volt battery that last for a couple months . I use it to keep the criders off my hummer!!!
Got it on E-Bay , now they sell it all over!!