Storage
Christmas decorations are usually safely stored in the attic or basement, depending on which one you have, assuming you do not have both. Some people barely check up on their attics throughout the year and have no idea what’s up there and the condition that the space is in at all.

This person found that out the hard way when they went up into their attic and fell right through the ceiling and onto the living room sofa. They did not know that part of the boards in the attic were rotten and about to collapse. Thankfully, no one was seriously hurt.