ok thought about this for awhile, forgot what i was thinkin about and just remembered, hey i smoke. First you can rig up a motion detector to spray any kind of areosol, next go to your local feed store, bass pro shop, etc. and get some female deer urine, some of that stuff is so potent its stinks on you for at least 3 days and thats on hunting gear when i lived in texas.lastly just take a walk around the block, go to the local stop-n-rob and just smell the air, youll learn alot if you just stop and smell ...the...er..you know. GL on your prob and protective green mojo to ya.