SUVs, big pickups, semis, vans, landscaper trucks, box vans, motor homes, RVs, mopeds, wind, rain, plastic bags, sand, oil spills, morons, etc.
All part of the hazards we face everyday that we ride.
The trick is recognizing the hazards and acting accordingly.
Use the twelve second rule: Know EVERYTHING that is happening 12 seconds in front of you. If someone is in the way of you knowing, eliminate the problem; change lane position, back off, or pass.