For my work, i carry 100-300 lbs. of recycling to and from residences, businesses, and the local redemption center. I haul an eight foot trailer, so it's hard to stay on the sidewalk and thus i irritate a LOT of motorists by taking up an entire lane (hanging out in the left most part) so they don't run me over. I often contemplate buying an industrial air horn so when they honk at me, they'll be a little startled to hear a rather louder 'honk' in return... perhaps more so if the windows are rolled down..

As far as motorists getting angry with me is concerned, i'm content to let them so long as i'm within my legal boundaries. 15mph with a trailer is hard to muster sometimes, so when they get verbally abusive it's a chance for me to slow down and take a breather