It entails an individual who, thinking they're alone, engages in some expressive behavior — wild singing, gyrating dancing, some mild sexual activity — only to discover that, in fact, they are not alone, that there is a person watching and lurking, the discovery of which causes them to immediately cease what they were doing in horror.
Ono podrazumijeva pojedince koji se, smatrajući da su sami, upuštaju u određeno  ekspresivno ponašanje — divlje pjevanje, zvrkasto plesanje, neku blagu seksualnu aktivnost — tek da bi otkrili da, zapravo, nisu sami, da postoji osoba koja ih promatra i uhodi, otkriće čega uzrokuje da istog trenutka prestanu  s time što su radili u užasu.