that trashcan says what?

I was walking through the hall at church today and saw this.....


It raised a few questions in my head..

Question A) Why did they feel the need to write INEDIBLE on a trash can?

Question 2) Do they mean that the trash can itself is INEDIBLE or that its contents are INEDIBLE?

Question D) Why INEDIBLE? Why not something like "Unrideable" since it has wheels or "Not for sleeping in" or even "Shouldn't be used as a flotation device"....these are equally as likely as it being edible.....right?

Thought) They felt that the communication of this warning was so important they wanted English and Spanish speakers to know. .....I say, what about the French or Indian? Don't they need to know not to try and eat the random trashcan in the church hallway?