The discussion was about windshield wiper patterns on vehicles and what was accurate. Some folks thought painted patterns look good. Others believed windows do not get that bad, or would be cleaned by the crew before they get to this extent.
Here are some definitive pics of a HMMV after a day of off-road driving. (Lucky for me I am a 'trainer' and get to take out our newbies out on our course.

I think this may end the argument and provide some inspiration!?



My poor attempt at this technique:
