After round one(granular crabgrass control, a customer canceled without reason on the phone. So last week I was next door and I noticed some big brown spots in her yard. Got to talking with lady and she said she took it to a garden store and they told her it was probably grubs. Neighbor said he had grubs, too. She blamed me for not killing them. Cancelled and treated them herself, with stuff the store sold her. I looked at the spots which she said happened right after I treated during spring break when they were out of town, (so my fault). I checked for grubs, sampled 3 places and found one dead grub. Looked carefully at the spots and pattern. Looked like Roundup injury to me. Some areas had straight lines. Some circles. Some looked like a person stood in one spot with a hand sprayer and sprayed as far as he could reach. Vandalism. She was not convinced. (Sigh.) Frustrated. Ever had this happen?