Is it legal to take a piece to the bathroom during an otb tournament?

is it?

i mean why not

ok

ill be sure to do that every tournament

why not

ok

Don't talk about your girlfriend like that.

ok

Or a piece of tissue paper?

no a chess piece

If the chess pieces are made of chocolate, go ahead! You can then legally say that "I have lost a piece".

I remember seeing "chocolate spoon" within the premises of a shop in an airport. The spoon is made of chocolate.

I'm sure there are chess pieces made of chocolate as well!

Ok, but more seriously, I'm not so certain if we are allowed to (even spare pieces or pieces from a different board altogether).

so I need to bring my own pieces to the bathroom

I'm not sure as to the legality of it but you will probably receive some form of discipline for it

yes