The burglar with the lemon juice disguise

10 May

Mind Hacks

I’ve just re-read the classic study “Unskilled and unaware of it” which established that when we’re incompetent at something we’re often so incompetent that we don’t realise that we’re incompetent. I had forgotten that it starts with a wonderful story about an inept bank robber.

In 1995, McArthur Wheeler walked into two Pittsburgh banks and robbed them in broad daylight, with no visible attempt at disguise. He was arrested later that night, less than an hour after videotapes of him taken from surveillance cameras were broadcast on the 11 o’clock news. When police later showed him the surveillance tapes, Mr. Wheeler stared in incredulity. “But I wore the juice” he mumbled. Apparently, Mr. Wheeler was under the impression that rubbing one’s face with lemon juice rendered it invisible to videotape cameras (Fuocco, 1996).

We bring up the unfortunate affairs of Mr. Wheeler to make three points. The first two are…

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