Tude
Sometimes traveler is traveling.
Got my first close up experience with this morning. Standing at a street corner with a few others and SOB goes by and let off a thick black cloud that engulfed us. Saw it the other day with an 18 wheeler went by and belched out a big cloud - and I thought wow something is wrong with his exhaust system. Wrong - turns out they do something to their exhaust system - can be inexpensive or they can buy stuff for it to intentionally - at will belch out the stuff. Guess the driver gets a kick out of it or something. Some of my bicycling friends have been complaining about this too. You experience any of this business? ::rage::