So I get a message on voice mail today (sunday) that reveals a gentleman I did a one time mow for last week, who claims I trimmed around one of his trees, nicked it up, and now he thinks it's going to die. I'll call him tomorrow for details....but... Anyone here ever KILL a tree with your string trimmer?? Sounds a little far fetched to me. Or have you ever heard a customer tell you this? I'm thinking a little pruning seal and we're good to go. Any thoughts?