I'm going to wash my hands in the bathroom at work with soap and scalding hot water so the person next in line knows they should be using hot water as well, and not cold water.
Why would you burn yourself on purpose?
I've been constantly nagged by my co-workers for months because I'm not washing my hands in the kitchen.
I don't know the science behind hot vs cold water removing bacteria from your hands. It's good that you're thinking about proper hygiene at work, though.
And I don't care about the science, it is common sense at this point. You wash your hands with hot water.
I still don't think there is a difference in water temperatures. Warm probably feels better than cold when it is freezing outside. If you use hot water your hands you could be burned in the first or 2nd degree.