[rescue] anti-roadrage devices

[rescue at sunhelp.org]

~ My younger brother, a more mechanically inclined person (he designs
~ industrial machinery for a living) had a nifty smoke screen device in
~ his car a la Jame Bond.  You have a second washer fluid tank under the
~ hood, filled with mineral oil or transmission fluid or any other
~ lightweight oil.  You have a washer fluid pump, pumping the oil out of
~ that down into a little bung fitting in the exhaust pipe just 
~ downstream

A friend of mine did this years ago with a truck that had air injectors in
the exhaust manifold (common pollution control device). He connected a tube
to the injectors (which are a vacuum source) and ran it into the cab. When a
tailgater appeared he would stuff the tube into a can of powdered sulpher.
Huge clouds of the stinkiest shit would come out. Sometimes people would
pull over and vommit.