and coffee inhibits that, prevents it from happening. so the trick is you take a cup of coffee, drink it, and then you take a 20-minute nap because it takes 20 minutes for coffee to actually kick in. >> genius. >> so you have the nap, you have the coffee first. >> need to try that. >> want to try it right now? >> it takes 20 minutes to kick in. >> oh, i got to tell you about malia obama. never mind. we know that the president and the first lady go out of their way so they're not available to interviews, their daughters, we learned a little bit about what malia obama really is like. she visited a washington, d.c. cafe. and we learned about this from a waitress who was there serving her. the waitress's name is becca, apparently she's just like an ordinary girl. she ordered frozen chai and eggs benedict. and a friend left a tip, 20%.