For now I'm sticking with efforts of catching him in this trap since he/she seems to be comfortable with it and likes bananas. Bob, I'm pretty sure the fruit was far enough away from the back that it did not access it that way plus the back was hanging over the edge of the shelf so it would have to be holding on at the same time.
So, after reading some ideas here, at 3:30am I've made some changes! :)