"Slapsgiving" is an awesome How I Met Your Mother episode. I love how the beginning of this episode with Future Ted telling his kids about Ted and Robin's private joke with military ranks. I actually enjoyed Ted and Robin realizing that their not actually friends, but then I love how they decide to be friends by the end of this episode. I love how Barney is living in fear because he's afraid of the next slap. I love how Marshall slaps Barney and then he sings a song about it. I give this episode a 9/10.