Years ago, I was building an RSX-11M system and it had a rather intricate
setup script. At one point it announced:
"This will take a while. Go have a cup of coffee."
And I useually did. Then one day I was building a machine in another lab
and it said:
"This will take a while. Go have a cup of tea."
OK, I had to dig into the script to figure it out. Turns out the beverage
selection was dependent on the configured line frequency. The lab system
was built for European deployment (50HZ power).