Why is it that the thing you buy to replace the thing that broke is a quarter of an inch bigger all the way round? When the thing in question is a door lock this results in a bunch of hammering, chiselling and swearing.
Not necessarily in that order.
Anyhoo, the front door now both closes and opens (as opposed to only doing one of those things easily). We actually convinced one unfortunate guest that we had automatically locked him out. Kind of like a “Reverse Hotel California”.