Here’s a quick lesson in Laptop Usage 101: never, EVER leave your machine unattended in a public place. EVER.
For starters, it could be stolen, like anything of reasonable value. Potentially worse is the fact that someone could access your priceless personal information in your absence, getting all sorts of juicy, valuable details while you’re away.
Or, the ultimate disaster; some plucky prankster could trigger a porno video to play at full volume at an inopportune time, making it impossible to close, nor hide your infinite embarrassment.
As seen in action here. The mark in question was targeted in a library too, a place only beaten in the silent embarrassment stakes by a funeral parlour.
You have been warned!