"Should we now proceed? If you are in a situation where a group is gathering to do something (go out for lunch, start a meeting, etc.), "Shall we?" would mean something like "Are we now all ready and is it now time to proceed with what we are here for?". (Or more simply, "Should we now proceed?", but that explains "shall" in terms of "should".)

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.

When you shall, and need to make sure others shall as well.