I noticed yesterday right before I washed my car that I had a couple of bugs that hit it.. on the back bumper.. Now the only things I came up with were: 1. The flow of air caused them to go up and around the car and hit the back bumper. or 2. The bug saw the car parked and thought it was going fast.. took off for it and found out a bit late that it wasn't moving.. Anyone else ever notice this?