On the morning of August 14th, I had an unpleasant interaction with an LB Medwaste driver. While driving in Madison WI, after turning on my blinkers, I attempted to merge into a different lane but was not able to do so due to the LB Medwaste truck driving in that lane. After passing me, the truck driver proceeded to produce an inappropriate gesture to display his disapproval of my merge attempt. While no harm has been done, such behavior poorly reflects on the image of business. I think that this particular driver could benefit from taking an anger management course or some other behavior coaching program.