If youre of a certain age when you first see Home Alone then youll have no problems with this particular scene. If, however, youve started shaving, then this iconic moment will have you scratching you head. Kevin is making the most of his alone time to work on his grooming skills, including slapping on some aftershave leading to yet another one of his famed screams. In fact, this happens twice throughout the film. The thing is, Kevin hasnt actually shaved, meaning theres no reason whatsoever why his skin would be sensitive to the aftershave unless he has some sort of allergy. Yeah, thats it: an allergy. Keep telling yourself that.