First and foremost, safety should have been your most important aspect of this entire project, Customers or people down there don't have a clue how dangerous the situation they are in when crossing pathways or around trees while trees are being cared for especially being high in the tree and maybe unnoticeable. Would it have been better to have done the job on a day when the office was closed, at closing time or maybe have another worker redirect the clients to a side door or something? I would have been very cautious around people at all cost and certainly avoid them if possible.