Adjusting in one's turn only There is this touch-move rule which doesn't apply when the player says &quot;Adjust&quot; .
Wikipedia says :

To adjust the position of a piece on its square without being required to move it. A player may only do this on his turn to move , and he must first say &quot;I adjust&quot;, or the French equivalent &quot;J'adoube&quot;.


Is &quot;only on his turn to move&quot; a very strict and binding rule ?
Since I see that this is done many times during the opponent's turn and no one complains about it .

Is this there so that the opponent doesn't get disturbed while calculating ?

If a scenario comes up where a piece is out of its square and is disturbing me, can I say adjust during his turn? (Maybe he may get irritated once in a blue moon.)

Is this rule required in all OTB events as it hardly gets followed ?

What is the historical background behind the &quot;J'adoube&quot;? Why is French the lingua franca in this case?
If a scenario comes up where a piece is out of its square and is disturbing me , can I say adjust during his turn ? ( maybe he may get irritated once in a blue moon ) 


If it's your opponent's move, you were the last person to modify the board and had the opportunity to adjust then. 

If it's bothering you that much then get up, get a drink of water, look at the other games, and wait until your opponent has moved and you can make the world right again.