ITT: Weird/unexplained things that has happened in your home

>15 years old
>having movienight with friend, parents are gone for the weekend
>head to grocerystore to buy snacks
>come back
>dog is missing
>search the house, dog is nowhere to be found
>house has been completely locked and no windows or doors are open
>notice that the door to the bathroom is locked
>wat
>unlock door with screwdriver
>dog is tied to the sink by the leash
>dog looks scared shitless, completely silent

Seriously, what the fuck could happened? It was snowing outside and we'd notice any weird footprints in the snow outside if someone had broken into the house and played tricks on us. Shit gives me goosebumps today this day.