During Battle of Britain polish pilots fought together with Brits but sometimes they got problems with british culture. One of them had no ammo into his fighter and decided to land on british airfield. Every second was important because Germans attacked like mads. When he did it, he noticed that airfield is ... completely empty.

After searching for a while, he entered shelter and notice that all Brits are there. When he asked why they don't fight (it was one of the hardest days), they replied "5 o'clock". All airfield crew (even with AA guns crew) was into shelter calmly drinking tea........