Receipt printer at my wife's workplace refuses to print. Error light is on.
She starts panicking. So I stroll over and attempted troubleshooting, then rebooted the printer. The report she was trying to print comes out moments later.
That reminds me, a friend's shop a few years ago had a problem where one of their POS terminals refuses to talk to the EFTPOS machine. Again, a quick reboot of both devices dealt with the problem.
gives you virtual hugs