Going to Sopot by local train we nearly got fined because we hadn’t stamped our tickets on the station in these tiny holes which we’d never have found if not pointed out to us. The ticket inspector was rubbing his hands together at the prospect of getting a bribe from us, not to be taken to the police station or fined etc. but we stood out corner and sorted it out with the Train Director who wasn’t such a horrible word beginning with C (cretin of course). We'd only just got on the train and asked where the machines were. It’s all very confusing. A friend had to pay a £50 fine for not buying a ticket for her luggage on the bus to Krakow airport. I hate this aspect of holidays in Poland - that they are out to get you.