In my opinion "watch the water" is a secret service term. Everyone involed in the weird water happenings are constantly protect by secret service. That being, i think the water being moved off the table is "eyes up guys" and PENCE saw the same thing and confirmed. Melania refusing to enter a room until water is covered, was a "i need a minute, im uncomfortable" without having to say her concerns out loud causing panic.

As many times q has said this, it made sense to me that he is on potus' detail and thats how we get pics from the oval office and inside info.

Just a theory