Most likely "canon" wedgie Noa Izumi would receive in Patlabor would have her losing her footing while getting out of or cleaning her unit. On her way down her white panties get caught on the labor eliciting Noa to cry out "EEEEEeeehhh-!? Alphonse, you've betrayed meeeeee!!!!" as she flails around wildly, her panties ripping after about half a minute and giving her an unpleasant but safer descent.