If anyone shuffles as they go up the companionway steps they don't go cruising with us. Maybe a day sail in calm weather but nothing more.

'shuffling up the stairs' would be taking it one step at a time instead of one foot on each step on the way up. If they shuffle they have no strength or balance and are dangerous to themselves and others when sailing.

I don't like to watch a crew member shuffle at all. It's scary to watch.