A plastic bottle can't hurt a player either. A coin is very unlikely to hurt a player too.
There shouldn't be a distinction - nothing should be thrown on the pitch.
If you do make distinctions, then everyone should bring a beachball to the game and absolutely bombard the place to make a point.
Hahaha - some Kopite bell called James LFC just neg repped me for this.
Read the bold bit you bad whopper then get the feck off an Everton website.