In modern table tennis it is a common practice to acting the fool when the match is almost over. I.e. players used to flip the side and play a little bit awkward analogue of table tennis when you need to hit your own side and not the another one.
Here is a couple examples what I'm talking about.
Is there a special name for it?
Is it a valid table tennis draw according the rules?
And why actually this trick become so popular?
Maybe there is some story behind it?