Jake is now 15 months old and pretty much the perfect basenji with one exception: he is extremely picky on where he'll have a bowel movement. He won't go if there are too many people around or if he's in the open. It's basically in the bushes or bust. The problem is that there aren't any bushes near my condo. The result is that it sometimes ends up taking 10-15 minutes to take him to the washroom. I'd like to cut this down if possible.
I've tried to train him to go in a specific spot by simply refusing to take him elsewhere. He'll scratch at the door, I take him to the spot and then he just stands there. After repeating this for an hour or so I get frustrated and just give up. This cycle has been going on for about a week.
Any ideas/suggestions on how to better handle the situation?