This is weird... Though I suppose one could drink Manischewitz (and get a REALLY bad headache), become inebriated, and stagger down the street yelling "adonoi echad!"
teddybeardanny, the idea in ultra orthodox Jewry is to get a couple engaged as early as possible - in their teens if possible, so they'll only do it with their partner at an age when hormones are raging.
The vast majority of Jews don't belong to the ultra orthodox sect.