I will take my chances just like everyone else. I have never had a single dissatisfied customer. Like I said you can do it or someone else will. You inform them of possible increased risk (one in thousands) and go to work. Believe me every damn tree is suggested to be trimmed at a certain time of year for leadt succeptibility to bugs, disease, and fungus spread. That is usuall in late winter! Which is the slowest time of year for tree services. Hell here it gets so slow many just close up shop until spring. Cold time is slow because people are indoors and unless something breaks they dont give a darn. Then spring hits and the bikinis and short shorts come out to their yard and say... "I need to get this tree trimmed. The leaves are making the branches sag." Ok ma'am I am booked for the next month. We will shoot for may! Its a process. I see and deal with it daily.