What is a safe and eco-friendly item to put on a lawn that will smell terrible?

Long Story: My girlfriend's grandmother has lived next to an empty lot (a little over an acre) for 20 years, with no problems. The neighbors on the other side mowed the lawn and neighborhood children played in it. The last few months as the weather warmed teens who did not live in the neighborhood have been congregating there late at night. It wasn't a problem initially as they were quiet and respectful of the neighbors (mostly elderly). Recently more and more teens have been showing up, leaving broken beer bottles, lighting small fires, and harassing neighbors who politely ask them to be quieter. For the past two weeks police have been called repeatedly by various neighbors. Although there have been a few arrests for underage drinking/possession of pot/etc., most just scatter when they see police, jumping fences and running though yards before reconvening when police leave. Sunday her neighbors are going to clean the lot and mow the lawn so the children can play there again. My girlfriends father and I are going to be there to install motion detecting floodlights on her and the other neighbors house but I have a feeling they will be broken quickly now that school is letting out. So, I am looking for something that I could repeatedly sprinkle or place in certain areas of the lot that would make a terrible smell for a few hours (neighbors all use central air religiously). It shouldn't hurt the soil or grass (its very close to a river), can be cleaned up easily or biodegrade quickly, and that shouldn't be a problem for children if they were to touch a small amount. (the children that play there are old enough to not directly eat anything left behind) I was thinking sulfur as it can be purchased at lawn and garden stores, but I am worried as it is flammable and they have already started fires. The neighbors have applied Scotts Weed control and fertilizer if that is important. Any ideas would be appreciated.