One of Albert Einstein's seldom spoken of laws of physics has to do with the rules of the road.* He clearly states that at no time can drivers, bikers and pedestrians happily coexist.
(*Completely fabricated, but seems plausible.)
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In this comic, Angela Liao of 20px proves that every vehicle of transportation has an irrational hatred of the others.
But seriously, get out of the way, everyone.

Comic illustration by Angela Liao, 20px. Published with permission; all rights reserved.