Stacking the Blocks

I noticed three smooth wooden building blocks left scattered near the foot of the bookshelf. Instead of leaning against them, I decided to see how they fit together. I nudged a wide square block with my snout until it sat flat and sturdy against the oak floor. Then, moving with patient care, I rolled a second block forward and pressed it with my nose until it rested squarely on top. It stayed still, neither tipping nor sliding. I planted my four feet wide and tapped the neat two-block tower with the tip of my horn, delighted by how solid my little construct stood.