What happens if you scream out of a window in Sweden at night

I hope it's wolves.

Totul se intampla intr-o zi de Marti, la ora 10 noaptea, in Suedia, iar reactia locatarilor din imprejurimi este neasteptata.

Nope, its called the "Flogsta scream," and may be heard when students individually or collectively let out screams and howls from windows, balconies, and roof tops.