Does this mean the reports about people being treated to drugged vodka (in the old American gangster films a tampered-with drink was called a Micky Finn!) or gassed to sleep are gross exaggeration by the tabloid press? Are the open-coach Inter-City trains safer than the compartmentalised regular ones?
News is news, and this may have happened many years ago, but if it was it was one isolated incident, which was made popular by people such as Michal who will no doubt come on here and give us his negative pearls of wisdom, based on observations 20 years ago in Poland.
All I can say is that I have lived here for eight years now and never had any problems, and just to be safe, treat as if you were in your own country, you wouldn't put yourself in dangerous situations there would you, so don't do the same here and you will be perfectly ok.