Comment Tim Hortons and Mr Lube (Score 1) 322
I walked into Tim Hortons for a double-double. They use big LCD screens for menus and video advertising in stores. Their screens were black and showing pxelinux trying to load. I guess they boot their menu server off the network, probably from corporate HQ.
Also, Mr. Lube (a drive-through oil change place) was using Ubuntu on their workstations - an early version with the nasty brown window titlebars. Their inventory/sales app was running in Gnome Terminal. Who knows what the backend was, linux was probably only being used to get them to a terminal as cheaply as possible.
None of these area actually weird. I always find it weirder to see Windows desktops on LED signs in stadiums or by the freeway. Once I was in Vancouver for a football game, the scores on the scoreboard suddenly 'moved aside', and lo and behold, there was a My Computer icon that was like 20 feet across. It was pretty funny to watch the operator trying to drag the "scores" window back into place to perfectly line up with the scoreboard screen.