Well done Converseahorse!
A carrot in the ground whould not reflect a light source so it would not have a colour ! I'm not sure about praties especially after a poteen or two.
How about this!
You are out on your bike and you see a guy shoot a high powered rifle at you in a perfect horizontal trajectory . You decide to free fall down a hill to avoid the bullet the instant you see the flash from the rifle. Of course your bike is frictionless because you spent time taking care of it .
Are you safe from the bullet ?