Found out last night my partner brushes her teeth with warm water.
I thought brushing teeth was a cold water thing, am I wrong?
Edit:
In the interest of science I tried both rinsing with warm water and not using any water at all. Results as follows.
Not rinsing at all left my mouth feeling all coated. Fluorine can jolly well do its job quicker, cos I'm not forgetting to rinse again in a hurry.
Doing the entire process with warm water was not as bad as I'd initially worried, but the cool mintiness and the warmth of the water was not the combination for me