Sunnies on the head at night......So?...You fly a sector that takes you from day to night, in flight you put you sunnies up and keep driving. To lazy or don't give a ship about the way you look on landing and leave them there till you get to you room and change clothes.
Water bottle....yes...aircon will do that to you after a while. Personally I bought a 1.5 ltr bag thingy so the water stays cold a tad longer and is easy to carry.
Care factor??
the big bagel
you idiot