Linux Mint lock with the 'Lock screen on screen saver' setting. The discoverer was two children, who were triggered by hitting the keyboard repeatedly. According to robo2bobo, who reported on this ...

If you give some kids restricted access to technology, they are bound to find a loophole or bug that lets them do what they want regardless. After being asked by his kids to “hack” his Linux desktop, ...

I usually lock my screen when I leave my cubicle for a tea-break etc. With all the talk of saving energy these days I've disabled screen-savers on my system. Still, when I'd lock my screen I noticed ...