Somewhere, several months ago, I came across Katris Blocks by Papercut Lab. We discussed their risked-impracticality for price paid—after all, cats are notoriously finicky, and truest folklore meme is their playing more with the box the toy came in. Finally, discussion led to purchase; on Feb. 6, 2017, I ordered from the seller, through Amazon, the colorful City SF set, which was discounted 20 percent from the price seen before Christmas. Less than 48 hours later, yesterday, UPS delivered the 30-kilo box (67 pounds) much sooner than ever expected; free shipping.

My wife and I made a production of the unpacking, by taking out some blocks but leaving others to support cardboard compartment play areas inside the sturdy shipping box, which we later moved to another room for continued overnight feline fun. We set up the modular blocks in the living room for nighttime cat shenanigans. This morning, I dragged the big box down to the garage and cleared the blocks from the living room sun zone, where the kitty’s frolic and tussle over territory, to the bedroom.