Okay, not painful, but it did make me chuckle.
I am (nominally) a supervisor to a couple of coworkers.
One of them came in today and asked if she could fax a document.
Since this is an acceptable practice (within reason), I said sure.
I was on lunch and she didn't want to bother me and have me do it, so she just confirmed the procedure.
"I just put it in and type the phone number, right?"
"Yep. And for this machine, load the document face down."
A minute later she comes back and says "I didn't want to bother you, but I don't think I'm doing it right."
So I go and follow her over to the machine.
I look at what she is attempting to do.
"Well darlin', " I say with a grin, "that's because this is a photocopier."
We had a good laugh about it and she said "Well, that's a funny story for you to tell!"
Photocopier =\= fax machine...