There is a time and a place for everything, and the alter in a church at your own wedding probably isn't the time nor place for much more than your vows.

Certainly not cashing in on a slap bet.

Maybe his best man bet him that his bride would be a no-show at the wedding? Either way, Groom: 1, Other guy: 0, until the new bride watches her wedding video. In case you were wondering exactly how a slap bet works, watch this short tutorial from the gang on 'How I Met Your Mother'.