Is it because the attendent said, "You're finally back boss!"? Since the boss told no one he was taking the train at night, it wouldn't make sense for the attendent to say that.
I'll give the band a try and get back to you on that.
Is it possible for me to stop having so much free time and using it to post? (And I'm not on THAT much...)
The attendent was told by the thugs to leave by train at 12 am, yet he said that he was given sleeping pills right away. So the attendent was lying. Next riddle?