Accidents will happen

The Wonkavator didn’t work as expected. Instead of flying around the city, amazing the occupants as it danced around the sky, the carriage was smashed to bits against the top of the elevator shaft.
You see, the blueprints called for a sturdy bullet-resistant glass with a steel skeleton on the carriage and an ultrathin shatterglass cap on top of the elevator shaft.
Someone got them reversed, and that got Wonka, Grampa Joe, and Charlie shredded into a bloody pulp.
Strange, orange-faced midgets gathered up the bloody bits, put them in canvas bags, and alerted the factory’s lawyers of the accident.