Why do I have this intense feeling of deja vu all of a sudden. :bonk:
Perhaps you're thinking of the thread I started (some months ago) when the bin was stolen one night and I was quite miffed?
(I lived in a terrace with no useful route to the back)
Yeah, that's exactly the problem here: we don't have any real access to our back yard except directly through the house (which isn't wide enough for a bin, even if I wanted to drag the smell of garbage through the house) so we have to keep our bins out front next to the street, where anyone can get to them easily. It's a real bloody nuisance, since living in town we get drunks and students (usually the same thing) who fill it up with their trash like it was public property.
And if you could I'd put a lock on the bin.
We have the bin chained up to the wall - a precaution we adopted after our bin was stolen - but there is no way to actually lock them shut, unfortunately. The bins look like http://www.internetgardener.co.uk/onlinegardencentreimages/uploads/wheelie-bin-size.jpg
If you can't seem to find any explosives, rig up a spring loaded plate that triggers when the lid is opened. Place a few raccoons or other pest animals onto the plate, leave it out for the night, and never worry about it again.
Best suggestion so far! They'll never see it coming.

Although, I wouldn't want to cause a repeat of the whole Bin Cat episode...
Oh God, and you sifted through that? You creepy, bro.
A man's gotta do what a man's gotta do... B)
Really, though, one of the bags seemed to be mostly just paper waste, which made the sifting pretty simple.
Monday Monday Monday, ITS DUMPSTER WAR RALLYS.
Featuring the terrifying TRASH-A-SAURUS!

:lol:
now, i understand that offering to purchase them a new bin seems counter productive and counter intuitive and you'd probably not wan to do that. offer to split the cost 50/50, then? the idea is to conquer evil with good. you might end up sacrificing the price of the container, but in the end gain a better relationship with them.
An interesting suggestion, however I'm afraid it's not so much a case of "conquering evil" as it is conquering plain stupidity. These people clearly do not recycle, which leaves them with much more waste than they should (while
everyone else seems to manage somehow) and they seemingly don't give a damn what color bin they put their [censored] into. They are students who will probably move on before long, and most likely have zero interest in being good neighbours. At the end of the day, I'm not interested in being their friend - I just want them to respect my property, and keep their [censored] to themselves.