Re: How I Met Your Mother: Barney and... (Spoilers ahead...)
Guy Gardener wrote:
But if he's trying to get past Marshall, that would be a purposeful and functional slap and not a slap bet slap, which means Barney can slap back.
The slaps are unconditional if i recall correctly.. Marshall can deal them out anytime for whatever reason and even if he just felt like it.
So the last one might even do some good
"Best job i ever had" - Fury