Some reasons the yard was not serviced include severe weather, holiday, unable to access the yard, dog behavior, yard maintenance. The yard needs to be well maintained on the day of service. We can’t pick up the poo if we can’t see it. Overgrown grass, leaves, or clutter makes it hard for our fairies to services the yard. The dog was in the yard and was believed to be unfriendly towards strangers and would need to be kept inside on our next visit.