My garden is bounded on 3 sides by a fence, that doesn't offer much privacy - I would like a taller one put up so we get that privacy. Trouble is I am only responsible for 2 sides of the boundary, my neighbours landlord being responsible for the final 3rd side. I could offer to pay for it all, but dont want to! Is it fair and normal to ask the landlord to pay for his 3rd, or will I be whistling in the wind...!?