hvm wrote:
 
> 3) Then, there is a polarity problem. Should the hot water faucet,
> whatever its label or color, sit on the right? Well, that, too, is sort
> of a random process.
 
You know, in computer programming, there are precise standards
for the syntax and behavior of every little operator.  But if you get in
someone else's car, you are hard pressed to find the controls for the
headlights, rear window defogger, radio, trunk release, emergency
brake, etc.  That's my peeve.