My local Subaru dealership accidentally put a gash in the sidewall of my old Pilot Alpins while swapping them onto my car for winter and agreed to replace them with a brand new set. Still not sure how they managed to do that, but there was a very clean slice across the side of the tire and about 90% of the way into the tire. I always check my tires for stuff like this before I leave the lot and luckily I caught it this before I had a blowout on the way home.
Picture from when I still lived in Cali