I believe he might be in a finance issue. Thats why he still
continued driving even if he is sick.
Maybe SMRT not enough drivers, so they called him in. BC also
lan lan as he feared the sack if he did not comply.
In the end, the management wanted to cover their asses, so the
poor BC made scapegoat for their shortcomings.
Managers are supposed to take responsibility, not pay someone to
cover up their mistakes. But then again if all managers were
perfect, there'd be too few jobs for PR personnel/executive
assistants.