As an old partnership or arrangement comes to an end, a new one begins.
A river may seem calm on the surface, but deep beneath it can be moving and turbulent. People have underestimated your calm exterior, and they have not realised that beneath it all you are very active and very aware of what is going on around you. They may get a very sudden surprise when they realise that you know what has been happening all along and that they have not been able to fool you.
Don't get caught up in pointless busy work. If it's unimportant and not urgent, dump it.