Another Czech joke
A man walks up to a tabák in Prague.
'Dobry den,' he says to the clerk. 'One pack of cigarettes, please.'
When he gets the pack, the man sees a label on the side. 'Smoking causes cancer.'
He hands the pack back to the clerk and asks for another.
The second pack has a label that says,' Smoking can cause impotence.'
The man hands the pack back to the clerk.
'Hmm,' the man says. 'I guess I'll take the first pack.'