I remember many years ago when atending a promotion course at Balcome Apprentice School - the local fire boys were filling the water tank of the fire engine. ;)
They realized that when the tank was only half full that they would miss morning tea at the mess, jumped in the truck and headed off. :;)1:
All was fine until they got to the the first corner, a 90 degree decending bend - BANG - one fire truck upside down in an instant - no one badly hurt fortunatley. ;););)
The CO was not impressed -
regards