Fittingly for such a horrible season, here is another stupid, meaningless, senseless garbage of an episode. As several reviewers have rightly noted, all of the slap bet episodes are lame, and the idea itself is pretty stupid to begin with. Not to mention the glaring inconsistencies with the characters - Marshall, for example, is portrayed at the same time as being the nicest person in the world, who, apparently can't even argue with people, but at the same time he is a sadistic psychopath who enjoys physically assaulting one of his best friends? Wow, what a great idea.
Also, this is another episode in which the writers admit defeat concerning the "bright" idea to contain the whole season within the wedding weekend. They have already proved that they do not have the skills to pull it off, so, after a bunch of boring filler episodes, they have started resorting to "backstories" that take us away from the wedding because even they have seen how ridiculous it is to try and milk the wedding theme on and on.
Also, this is another episode in which the writers admit defeat concerning the "bright" idea to contain the whole season within the wedding weekend. They have already proved that they do not have the skills to pull it off, so, after a bunch of boring filler episodes, they have started resorting to "backstories" that take us away from the wedding because even they have seen how ridiculous it is to try and milk the wedding theme on and on.