There's a story that Wong Wifu, the great Chinese martial artist... had a fight with a guy and beat him. Then the guy gave him this light tap. Wong looked at him and the guy just nodded. That was it. He had given him the death touch. Wong died.
Then and there?
No. About eighteen years later. That's the thing about Dim Mak... you never know when it's gonna take effect.
That sounds like a disaster. All it will take is finding a single cool looking doodad and the entire cleaning crew will be occupied for hours