/diy/ - Do It Yourself

Anyone have any tips on making a spot inhabitable for tweakers. There is only 1 place in my area where it's reasonable to ride my bike and some aggressive homeless people have recently set up camp in the bushes in a section. Theyve been putting up obstacles and throwing shit as people ride by. Only idea I have is to spread some shit all over the place to attract bugs or make it smell (tuna fish, syrup, crumbs, cat litter). I'd love to hear /diy/'s suggestions on the matter.