Humans have always been fascinated by birds.

We marvel at their feathers, their sing-song calls, and perhaps most of all, their ability to fly.

Leonardo da Vinci filled journals with detailed sketches of their wings, including pigeons and swallows, to try and understand how they do it. The Wright brothers

carefully watched turkey vultures and seagulls to mimic how they turn their wings in air to stay

afloat. But what happens when that fascination goes too far? In May of 2010 at the Birmingham airport

in central England, something was wrong.

At least, that's what custodian John Strzinski was thinking.

He had arrived to clean the shower rooms in the Emirates lounge, but a passenger had been in there for far too long.

The man who was waiting for an afternoon flight to Dubai, had entered the shower with several

suitcases, which John thought was a bit strange.

And as he waited for the man to wrap up, his impatience turned to curiosity.

What could he be doing in there?

When the man finally stepped out of the shower room, John went inside to find all of the towels neatly folded.

There was no sign that the shower or sink had been used at all.

Growing more suspicious, he looked in the trash for clues, but found nothing.

He even climbed onto the sink and checked to see if he had hidden something in the ceiling panels, but nothing.

Finally, he checked the baby changing

table, which had a trash bin of its own, and inside, he found a single egg. John didn't know that

the man was a seasoned operative in a covert world of crime. He had no idea the man had

a legal contraband strapped to his chest, concealed under his clothing, hidden from view.

But with the sight of that one egg, coupled with the odd behavior, he knew enough to know that something wasn't right.

And it wouldn't be long until it was revealed just how right John Strzinski would be.

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