I'm sure this won't even register on the Ghost Buster Scale, but... I went to go take a shower, and the shower is sprinkled with dried pre-cooked rice. Pre-cooked rice has NEVER been seen inside this house, or I'd blame the mice. I'm the only one home. I didn't do it.
I think Donnie Darko traveled through a worm hole time continuum back to the 80s, watched a Rocky Horror Picture show, got pockets full of rice, came back on an airplane, crash landed in my backyard, took a shower in my bathroom, then ran off to fine the rabbit man. The only thing missing is the airplane. Otherwise, that explains it perfectly.
So... what Close Encounter have you had recently with another dimension?