innuendo

http://en.wikipedia.org/wiki/George_Cockburn Rear Admiral George Cockburn.

http://en.wikipedia.org/wiki/The_Man_Who_Came_Early The Man Who Came Early

http://www.theregister.co.uk/2007/11/23/national_anthem_gaffe/ The story of one mispronunciation of the Croatian national anthem

http://lpcoverlover.com/2010/07/18/no-spitting/ Cultural gap.

4/21/07 Gil's LotD
http://www.youtube.com/watch?v=ZtNjDWRXaKI A Comedy Central skit where a talking deer model is tied to the hood of a car and heckles people outside of a gas station.
http://kb.mozillazine.org/Problematic_extensions Firefox's list of problematic extensions, especially the ones with memory leaks. If you've got Firefox extensions installed, be sure to check this out.