I was running kind of late for a gig that I had tonight and was a little rushed. Since it was going to be outdoors I decided to take both my 15" cabs and took my Diesel down last since its super heavy (about 80lbs). I lost my footing when I was walking down the flight of concrete stairs at my apt and the cab slipped out of my grip and tumbled down about half the stairs and made a huge noise on the sidewalk. On inspection it looked fine- nothing on the toltex, the plastic corners were intact, casters worked fine. I played the gig and the speaker was as reliable as usual. These things are built like tanks!