I've been reading the thread on the cable lines not being buried and i have ran into that as well on a couple of occasions. but what i hate more is customers who get the invisible fence in the middle of the summer and those white flags are in there yards for the next season and a half !! what do you guys do with them do you pull them and put them back????I've been mowing in around them the best i can , usually the customer loses at least one per cut hehe .