EUCLID DRIVER WAS INSTRUCTED BY MECHANIC TO CHECK ANTI-FREEZE TEMPERATURE OF HIS EUC E-16 WITH A HAND-HELD HEAT GUN. EE UNFAMILIAR WITH USING A HEAT GUN LOOSENED CAP AND WAITED FOR HISSING TO STOP AND RESUMED LOOSENING CAP, PRESSURE BLEW OFF CAP AND BLEW ANTI-FREEZE ALL OVER HIM.