Three guys just arrived in the Gulag. They ask each other what they did to end up there. First one says:

- I came to work 5 minutes late, I was sentenced to 10 years for sabotage

Second one says:

- I came to work 5 minutes early, I was sentenced to 10 years for espionage.

Third one says:

- I came to work precisely on time, I was sentenced to 15 years for contraband of foreign clocks.