Waking up and realising you have been tied up with several lengths of rope by a home intruder. With that ballgag in your mouth you have no way to protest coherently as they mock you for your predicament. They leave you plugged and vibed on full power before making their exit
Being tied with rope and gagged with several layers of tape holding in somebody's used underwear, and stuffed into a box where you're transported across town to an undisclosed location for further "fun". Nobody would think that there's a captive in that box after all...