Released in 1984, the film 'Purple Rain' features an iconic scene where Prince (as The Kid) challenges Apollonia Kotero (as Apollonia) to prove her dedication. He tells her she must 'purify' herself in the waters of Lake Minnetonka before he will help her career. Apollonia strips down and dives into the freezing water, only for Prince to reveal with a smirk, 'That ain't Lake Minnetonka.' It is a classic moment of cinematic gatekeeping and playful deception. In internet culture, this clip is the gold standard for representing initiation rituals, falling for obvious pranks, or the need to 'cleanse' oneself after witnessing something cringeworthy or unsettling. It perfectly captures the vibe of being misled by a mentor or a cool friend. It also resonates as a relatable 'testing the waters' scenario for any new situation or relationship. Example caption ideas include: 'Me trying to wash off the cringe after seeing my old Facebook posts,' 'The senior dev giving the intern their first task,' and 'When you follow a tutorial that was actually a prank.'