A stranger took a selfie with Reddit user MrsRoseyCrotch's husband while he was asleep at the airport, and then sent it to her from her husband's phone. She was super confused at the bizarre scenario, so she did what any person in her weird, potentially dangerous situation would do: tell Reddit about it. It quickly made the front page, and went on to garner over three million views on Imgur. 

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Reddit users had some, um, theories as to what was going on:

Sources: Reddit