sober blackout

a blackout state achieved by witnessing other inebriated persons do unspeakably awkward and socially appalling things. Witnessing the drunken absurdity throws the sober observer into a temporary state of shock, immediately followed a prolonged state of blackout.

Note: it is not necessary to consume alcohol in order to reach a state of sober blackout

"YES. It is called a sober blackout and I have had several of them...many of them at pub nite."