A Zucker
You thought you'd just check Facebook for five minutes and now it's 7 p. m. and you're still eating lunch.
You opened Facebook to see what your ex was up to and now you're eating cold pizza at 7 p. m.
You checked your news feed once and now it's 6:45 p. m. and you're still at work.
You opened Facebook for a second and now it's 7:12 p. m. and you're still at the office.