water is thicker

I'd just poured the last of the water in the pitcher for my daughter. So I refilled it and set it down next to my empty glass to wait for it to filter. When I turned to pour it...it was gone. My husband had taken the pitcher, filled HIS glass, left mine empty and returned it to the fridge. This sparked a 20 minute argument. I guess you could say this is a glass completely empty situation I'm living in.