I worked at Office Depot for a while, and Chinese couple brought in their laptop with a problem. OD didn't do repairs, but I had worked at a Gateway 2000 call center and a local computer shop, so I knew my way around.

Their computer was completely in Chinese, but that didn't stop me from just quickly clicking through to the control panel and fixing the problem.

They were practically slack-jawed staring at me, and then asked, "Do you speak Chinese?" I told them I just know where the buttons are. :D

It was experiences like that (helping a customer beyond what the store supported, in extreme situations) that make me miss retail sometimes. All the BS makes sure I don't go back.