Tipping the king in chess.?

Growing up, whenever I played chess with friends or family, we always tipped the king over with our finger if we resigned. However, I've been watching alot of live tournament chess videos and it seems no one does this. Is it not a widespread tradition or is it considered rude to do for some reason in a... show more Growing up, whenever I played chess with friends or family, we always tipped the king over with our finger if we resigned. However, I've been watching alot of live tournament chess videos and it seems no one does this. Is it not a widespread tradition or is it considered rude to do for some reason in a professional game? Don't see how it could be rude though as it was such a humble gesture growing up.
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