Well, this is the guest-be-gone. When they won't leave, you plug this in, and they are gone in five minutes. And you know what, for your in-laws, they make one with a siren.
Animal Planet - Backyard Habitat
The Strobe light goes on, it flashes a lot, it becomes irritating to them, and the animals get the picture that it's not really a place they're supposed to be. The thing is, make sure you have curtains drawn in your attic, because your neighbors are going to think you have something wild going on.
About.com - How to Get Squirrels out of the Attic
A nasty environment must be created, an environment so nasty that they will be repelled and not want to be there. One option is the Evictor Strobe Light invented by Earl because he was having problems with squirrels in his own attic.
Pest Management Professional Magazine - In the Field: Light Makes Right
The Squirrel Evictor helps Massey Services rid structures of pests - squirrels, feral cats and roof rats - quickly, cost effectively, and safely "Believe me, The lights are just as nasty for you and me as they are for pests," he says. "In training, We'll keep one one for about four cycles before people say: 'Okay, we get it. You can turn it off now.
The Washington Post - A Device that Drives Squirrels Nuts
It's like living in a cheesy '70s night club -- A perpetual cheesy '70s nightclub, studio 54 with a cocaine-addled DJ who refuses to stop the checkerboard dance floor from pulsating.
Pest Control Technology Magazine - GOING SQUIRRELLY?
The Evictor strobe light is a new tool that can be best described as a repellent. It annoys the animal's sense of sight and is intolerable. After Installation of the strobe light, flying squirrels and Eastern Gray Squirrels vacate the attic within one to two days.
NBC News - Green is Universal
If you put out poison in the attic, the squirrels could die. These strobe lights are a safe alternative. If you watch it long enough you kind of get motion sickness.
