присаживайтесь vs. садитесь

Is there any difference between these two commands? присаживайтесь садитесь
thanks

Присаживайтесь is more polite; it's not a command, it is an offer.

The command would be Сидеть!

Сидеть is a very very brute and humiliating command or dog's command.

Quote:

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Originally Posted by Звездочёт

Сидеть is a very very brute and humiliating command or dog's command.

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Still it IS a command. Or an order.

Сидеть implay master-slave relationship. For example, it's appropriate in (or at?) the arm or prisons.