Season 5, Episode 14 | February 1st, 2010
With Barney approaching a personal milestone, "the Perfect Week," which is to sleep with the first girl he hits on seven nights in a row; and he relives this all through an imaginary interview with Jim Nantz. The gang rallies around him in support. However, it soon becomes clear he's using this personal goal as a diversion from a much larger problem which is that he may get fired at work. Meanwhile the gang uses Barney's situation as their own diversion -- Ted has insulted one of his students, Lily and Marshall shock a couple by revealing they share a toothbrush and Robin waits desperately for a call from a date earlier that week.