The first (and only) time I ever ran away from home was on September 16, 1963. I was four years old. The reason I know the date is because of the reason. Mom went to the store, Dad fell asleep, and the TV started showing "The Galaxy Being." I was so terrified that I grabbed my favorite stuffed animal and left. A neighbor spotted me a block or so away and walked me back home. My parents then taught me how to change the TV channel, or turn the whole thing off.
Cool design, but impractical for households. How are you going to "borrow" a chair to stand on and change the light bulb in another room? How could you push the chairs in enough to block cats from jumping on the table? And armchairs at a table are impossible for obese people. Also, moving this whole thing at once to clean the floor would be a real chore.
I've done this, not with glasses, but I've made multi-flavored jello in half-pint jars. I got the slant by propping them in an empty egg carton. I still put a piece of styrofoam packing around them to keep them from spilling in the refrigerator.