Stowing for sea is an art that any good sailor should master.  Being dockside at anchor the sailor needs to be able to visualize the ship rolling in a seaway.  The sailor assumes anything and everything that can move will move and figures out a plan to stow it properly. You may ask yourself, everything?  Yes, at sea everything will move I can promise you this.  If it is not tied down it will move, if it can move, it will chafe, if it chafes its will be ruined.  Things that should not be moving are bad and chafe is a sailor's worst enemy.