You know, that might be a good house rule to prevent them using Zoro's navigation to get out of trouble.

If he sails the ship, instead of rolling all power resides in the DM.

For Better or Worse.

So basically give the GM the authority and power (when they let Cory navigate) to drag them kicking and screaming back onto the rails...well somewhere on the rails at least. May be in the past, may be in the future. Who can say?

Or go the complete opposite and send them so far off the rails that not even their crazy plans can handle it.

At this point the GM have no idea what he is doing, but he will absolutely not accept to stop the game. the session have to keep going.

i'm not sure the GM have any idea that he is doing something.

The show must go on!

I’m surprised he didn’t navigate them into the calm belt.