Hello all, I'm new to these forums and I need advice.
I have two 4 year old male ferrets. I've had them for a couple years now, and while one has no problems with litter box training, the other still rarely uses it. He's picked a corner he wants to poop in, and will go there regardless of what I've put there. I've tried putting a bed there, I've put his food and water bowl there, and he still poops there. I will have just cleaned the cage very thoroughly and he'll go right to that corner and poop, forcing me to clean the cage again.
This behavior is driving me nuts to the point where I have considered giving them away on several occasions. 
Any advice is appreciated.