A customer purchased a couple dozen 'Smaragd' / Emerald Green Thujas and called me about installation. I install customer provided trees, but without a warranty. It hasn't been an issue. However, when I visited the site today he would like them planted along a fence that borders his mature oak wooded lot backyard. Scenarios of berms and raised planters came up to avoid significant damage to the oak roots and that doesn't even cover that the best case for sunlight is 4 hours of direct sun on the part of the trees facing the fence (and not being shaded by the fence itself!) In terms of professionalism, is this a job to turn down? A job to write a detailed contract if the customer really wants to try? I told him that I didn't want him to throw good money after bad but I'd think about it for a couple days. Trees were a weird field-grown but put into containers for sale at a Big Box Store. Super heavy.