On 09/06/2020 11:19, Simon Mason wrote:

On Tuesday, June 9, 2020 at 8:43:44 AM UTC+1, TMS320 wrote:

Littering

and assault with a weapon.

Only if the thrower was a seriously good shot, with the unusual skill of
being able to hit a moving target which was behind him (or her) whilst
moving forward away from the target and being unable to propel the
missile toward the target directly, instead having to fling it sideways
and to calculate the curved path through which it will travel, caught by
the vehicle's slipstream, before hitting the target some way behind -
but with that exact distance not calculable, because not precidely
predictable.

I tend more to the accidental fluke theory.

And the littering, of course.