Mike G wrote in
ews.com:

fall/winter of 66

Hmm...I would have been in that situation in 1969-71 a few times. Sure
keeps the chow line real short, once you figure out how to keep your tray
down with your foot while trying to stuff the sandwiches in your mouth as
they fly by...(c;

We broke a lot of those green ring Pyrex coffee cups, too!