a postural way to express regret. For a stronger effect plant your face on the floor. In case of apologising to a person of higher authority it is not uncommon to let barking or even meowing sounds out to express your regret. At the same time deep breathing in this position can help you relieve personal stress accumulated in the situation.
After driving a motorbike into his bosses parked car, he had to spend half an hour downward dogging in the office until the boss finally decided to give up and forgive.
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