Two friends who work in the Federal Building in Bern have lunch together every day. 

One day, one of them did not show up.  His friend went to his office and knocked on the door, but there was no answer.  He opened the door, went inside and found his friend deeply asleep, his head resting on his arm, snoring. 

He shook him by the shoulder and said, "Hey, it is time to eat lunch!" 

"Thank you very much for fetching me," the other replied, "I almost worked through!"