No children in my household. Maybe some day.
When I was a child, my parents repeatedly told me to never drink something from under the sink, the basement, or utility room... and I listened. Actually, I'd never even considered it, and thought it was odd they'd even say that.
I suppose I was conditioned to think that drinkable fluids came from only two places, the faucet or refrigerator. That little psychological bias was probably more powerful than anything else.