you cannot go to prague without your passport

that was what i was told by the police on the train after it set off from Sudbahnhof for 30 minutes.

so i had to drop off at some out of the way station and wait 30 minutes for a train ride back into Vienna. And it was too late to even get the 6.33 train to prague, so i am gonna wake up very very early tomorrow to catch the 6.03am train there, with my passport this time.