A career ending move for sure...Knew a guy who was a tanker driver and he was transferring some chemical like this and hose blew dousing him...he lingered for 1 month and died a horrible death.
I was present in an ethanol plant when a truck made a delivery of sulfuric acid, and somehow the acid got transferred into a large tank of sodium hydroxide used for automated tank cleaning.
It was an earthquake that bounced the caustic tank off its floor anchors, but the tank fortunately held.
External delivery lines were radically redesigned.