Two drivers and a road rage incident caused a transport truck to lose the modular house it was carrying along Highway 97 near Kelowna, B.C. on Wednesday, the Alberta-based trucking company says. DBI Transport says after a piece of drywall flew off a pickup truck on the highway and smashed a car's window, the resulting road rage ended with the transport truck driver having to slam on his breaks, causing the restraints on the home to break and the home to slide onto the road.