Imagine my surprise when I walked in to find him sitting atop the dining room table!
I took him down and promptly called Dan.
While Dan was telling me how bad this was, James proceeded to demonstrate just how he did it. His small wooden chair was near the table (I think he'd put it there), and he climbed onto it, then from there to the table top where he sat triumphantly.
My only regret is that I have no photographic evidence.