At least you know its upside-down...ever see a VO3x with a 66
back desto 
There was one time a 196 stopped at B2 of CLE Int (the
one which takes 14, 282 and 156 svc). Then since there was no pax,
he drove off with 196 desto and turned LEFT out of CLE
Int....
standby driver? better pray that he remembers he's driving 196
& not 14 or he's in big trouble. I've ever encountered 1 BC who
forgot he was driving 192 or 193 & kept going around 1 of the
roundabouts in Tuas for 5-6 rounds before he remembered
(lucky).