No dogs?? I'd try seeding the area with fire ants, shouldn't be that hard to do and no bums going to sleep on the ground with fire ants around.
The dude from florida those red ants will do a hell of alot better than a dog. I have lived in florida and stepped on a ant hill man they are quick and hurt.
Fire ants would be killer, I'd even go as far as to wait for one to get chewed up by them so I could video tape it, but there's a concrete floor with carpet on it. Speaking of which, one of those idiots swept up the sand/leaves/mcnugget-sauce-containers that were in the enclosure one time and do you know where they put it all ? They just swept it outside the enclosure door where the wind could blow the trash all over the courtyard.
This is a tough situation, maybe get a community dog that can roam around. Lock the gates. Hope you find a solution to this problem.
um... maybe hand out airsoft guns to all your neighbors with courtyard-facing windows and then put up a sign saying "trespassers will be shot"?
There's a device you can buy in the UK called The Mosquito which emits for a certain radius the most awful high pitched sound inside your head. It was designed for shopkeepers trying to deter youths from congregating in any large numbers near shop premises and possibly causing a public nuisance or intimidating other members of the public. I don't know if the law in your area would allow such a device to be used or whether it is available in your country. It might be worth checking out though. Certainly it should deter anyone thinking that they're going to get a peaceful nights sleep by dossing down in your yard or enclosed area. More details can be found on this link regarding this device: http://news.bbc.co.uk/1/hi/wales/4768213.stm There is a North American company now distributing these and I believe the frequency can be adjusted so that it doesn't just affect a certain age range. Hopefully, this might help you out.
More than welcome, let me know if you need a hand finding a Stateside supplier and I'll dig around for you if you need the help ok. It is directional btw that device, you can aim the 'noise' anywhere you like. Psychological warfare in the UK, alive and well.
Wow! it really is joebert! Tell ya what if you can get hold of some powdered CS, it will do the job for you. They used to use that stuff on tunnels back during the Vietnam war. You get that CS on your skin and it drives you crazy. Sprinkle that stuff on the ground and wait till someone crawls through or lays down on it and hope all your neighbors wear shoes.
It's the strangest thing, all of a sudden the bums just quit comming around. I think it had something to do with the bushes and trees leading up to the back gate getting cut down. Maybe they can't sneak in as easy anymore or something. There was one guy though, I think he was on some kind of drugs. I saw him walk by my window, and long story short I ended up seeing this guy strip but naked and look at himself in the plate glass window across the street before I laughed and scared him off into the neighborhood. That's a good thing I hope.