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So, every single time I watch Home Alone, I notice this.  Tuesday night was no exception.  When Kevin pushes Buzz during the family dinner the night before they leave for Paris, and Buzz spills milk all over the table...Kevin's dad wipes it up with a bunch of napkins, which he throws in the trash.  If you look closely...KEVIN'S PLANE TICKET is in the trash with the napkins!  Now I know I'm not crazy.

See more proof --> BUZZFEED