So after a couple of months of outside potty training going well (a few minor accidents - mostly when I didn't realize he wanted to go out, and then usually on the mat in front of the door - which he then bites at I think to try to cover up the evidence
), Perry has developed an aversion to the yard at certain times of day (morning and evening). I don't know what's different now - I assume it has to do with the grass being a little high and it being damp in the morning / evening, but it was like that the whole time. However, the last couple of weeks he's taken to peeing and pooping on the patio (covered/ concrete) for his morning and evening. I can take him out into the yard during those times on leash - the biggest problem with that is because he's male (and doesn't lift his leg), it's dark out and he's short I can't actually tell if he's peeing (resulting in yesterday's incident of taking him out on a leash into the yard, him pausing in the yard as if he were peeing, us going inside, and him peeing on the bathmat in the bathroom). Plus, it's a hazard to walk in the poop area of the yard in the dark (as 2 pairs of sandals can attest).
What he's been doing if left on his own at that time of day (and in the morning) he is going on the patio, and I'm not quite sure what to do to discourage this behavior. I've started playing ball with him on the patio (hoping to go with the theory that they don't like to potty where they sleep or play) but so far that hasn't discouraged it.
Like I said, this hasn't been from the beginning - it's a new twist. Any ideas?