Yeah i agree....i used to love my cats being outdoor cats...they loved it too but since the idiots where i live have taken 2 of mine and another went missing in very strange circumstances ( i assume she was taken and sold as she was pure white..only a moggy mind but beautiful) i can no longer let my cats out now
i say just keep bugging at your neighbour....there excuse is always ''well if they prefer it here who am i to judge''....but the cat doesnt know whats best for them do they....such as worming and vet bills
Hope you get it sorted soon it is heartbreaking to ahve one of your cats going to the neighbours...if it carries on though and gets more frequent to the point of they dont want to stay in your house then def make him an indoor cat, i couldnt do it with mine as they just would not use the tray and then took to pooping in my bath and anywhere else they could
good luck
