Marshall (Jason Segel) has two more slaps remaining to use on Barney (Neil Patrick Harris) in Season 9 of How I Met Your Mother and he will use them both before the series concludes in May. The site SlapBetCountdown.com will hit zeroes on Jan. 13 when the show airs an episode entitled "Slapsgiving 3: Slappointment in Slapmarra." And the episode will have an extremely weird element. Read More »