Sure. I was sitting in a taxiing plane last week leaving everything else to the professionals when all of a sudden the plane screeched to a halt. A smaller plane from another airline turned immediately in front of the plane I in which I was sitting inside (leaving everything else to the professionals).

The captain of the plane in which I was just sitting and leaving everything else to the professionals did the right thing - only thing - and slammed to a halt. The problem was there was no explanation to the passengers why our drinks went flying into the floor. And some GTC professional or some captain screwed up badly. Or, my captain didn't stop where he was told to stop. It was the closest I've come to an on ground collision.

Unfortunately we have to leave everything else to the professionals when in the air. To suggest that we shouldn't discuss it while safely on the ground is somewhat silly.