The boss brought a customer by, showing off the shop and our capabilities, and she smelled the smoke as soon as they entered.
She exclaimed, " You're smoking a PIPE! "
( The boss got this look, like he'd just lost a customer, his face starting to screw up like a lemon. )
Then she continued, " My grandfather used to smoke a pipe. We used to go there every year at Christmas time. I haven't thought of that for years. "
Then she got all misty - eyed for a minute, and I introduced myself, shook her hand, showed her around.
She spent more time in my smoky little shop than she did in the entire rest of the building, and thanked me most graciously when she left.
It was unsaid, but part of the thanks was for bringing back a memory.
My boss just looked relieved.