Beware the stairs

As a lady who has ungraciously face-planted up, down and across numerous flights of stairs, these from TAF Architects (as seen on Design Sponge) scare the bejeezus outta me. Can you imagine maneuvering these things in heels? Or stumbling up them after a few too many champagne cocktails? Or rushing down them in footie pajamas to see what Santa left under the tree? All three scenarios end very, very ugly in my mind.

True, they are very pretty. My eyes love these stairs, my uncoordinated legs and feet, however, are quivering in fear.