A couple got lost in the fog somewhere in the north west. happening upon a large wall, which they soon discover is a window, they began to pound on the glass while screaming for help.
moments later a few faint faces appear behind the glass.
the couple yell, but the glass is thick. neither side can hear the other. the woman takes out her lipstick and draws on the glass:
"ew era erehw" ('where are we' in reverse.)
the faces disappear behind the glass and soon reemerge with a large sign that says:
"you are on the other side of the glass"
the woman laughs and says, "oh, we're in redmond, wa, just outside of microsoft's headquarters"
the husband is amazed and asks how she could know that.
"because", she replies, "the answer to my question was so worthless and unhelpful that it could only be microsoft."