Social Dilemma - Do You Brush Your Teeth With Cold or Hot Water?

Today's social dilemma was originally going to be about something else that we'll talk about next week, but this came up organically this morning talking with my coworkers in the building about the cold weather.  We were just saying our normal early morning hellos and talking about the cold weather, and one of the guys said, "I was so cold this morning, I didn't even want to brush my teeth with the cold water."  So I told him, I don't.  And he couldn't believe it.  It's true.  I don't brush my teeth with cold water.  I brush with warm to hot water.   I have sensitive teeth so warm water feels better.  Plus it loosens the bristles on my toothbrush.   So of course we had to do a morning round up to see if anyone else did that.  Out of eight of us, one other person did it.  So there were two of us who brushed with warm/hot water and six who brushed with cold.  The cold water brushers said they have never even given a thought to brushing with anything other than cold water.  It just seems wrong.  So I thought I would ask you.  Do you brush your teeth with cold water or with warm/hot water?  I'm a warm water girl all the way!  What about you?  And do you think it's weird that there are some of us who use warm water?  Let me know what you think!