My two year old male Bengal cat started to poop outside the litter box. What became a random now becoming a daily routine. I had him checked at vet, but he did not find anything wrong or sickness. I clean his litter box every day. This started about two three months ago, and now I have limited access to all rooms with carpets. He poops everywhere even when his litter box was cleaned up every single day in past four weeks. I am going to take him to the vet tomorrow again. He does have normal poop, no diarrhea. I changed litter sand, but did not help. It started to affect relationship within the family and our feeling toward this otherwise very lovely creature. We do not know what to do at this point. How to force cat back to the litter box? Why he goes outside and refuses to poop in the sand? It is a permanent issue? Do we need to give him away because he is unhappy in the house?