What does curb your dog and Do not Curb your dog actually mean?

Question

I have heard of "curb your dog" but never "Do not curb your dog".
Does that make sense?

Answer 1

Curbing your dog means making it go potty by the curb as opposed to the middle of the sidewalk! (to lead (a dog) to a suitable place (as a gutter) for defecation)

It can also be used as "to check or control with or as if with a curb "

Answer 2

Yes, some places do not want the dog crapping in certain areas---that's what it means--"do not let your dog sh!t here".

it makes sense once you read it that way.