Slab
Occasional Tour Caddy
Case by case basis I'd say. None of our bunkers are very wide front to back and so it is easy to throw or drop the rake in the bunker without making a mess. It really isn't difficult.
So now we have different places to leave the rake depending on bunker size. I agree still not difficult but you can see why your positioning might seem idiotic and be viewed as stupid, careless or unthinking by those following