Shower Controls

It took a few minutes the first time I took a shower in Mexico to realize that C was for caliente (hot) and that when I looked, F is for Frio (cold). I can just imagine the plumber at the Best Western in Managua opening up the box of shower valves, installing the C for caliente. Then picking up the other, installing it, stepping back and saying ‘what the hell is there an H in there for?’