Coming Through!

Cat Law Section 8b, Paragraph 4, clearly states that: If two cats meet on a narrow fence in which there is only room for one cat to travel at a time, the cat going downhill must yield to the cat traveling uphill. The downhill cat should crouch down enough to allow the other cat over; unless it is more practical for the uphill cat to find a wider space or turnout.

Reasoned by logic, unlike bird law.