Just to be awkward I've never had a toilet dream.
My two, recurring regularly now for well over 50 years, seem to be slightly prophetic.
1. I'm trying to ring the emergency services, though I never know why. Almost every thing prevents me: broken phone, no answer, no one understanding me, not being able to find a phone etc.
Some years ago, assuming this meant I was subconsciously needing help I started looking at what was happening in my real life but there wasn't much wrong.
During the times when things really did go to custard, I never had the dream!
But twice in my real life I have actually needed to dial 999 (found collapsed persons) and each time the ambulance never arrived.
The second dream has always involved trying to drive and getting the sun or a bright light in my eyes so I had no choice but to close them...whilst still driving.
Now I am partially sighted, can't drive and must stay out of the sun as brightness takes away what little sight I still have.
Fascinating stuff.