I have a situation in my 90 year old house with the bathroom door. Last night my bathroom door was closed and somehow bolted locked from inside and I can't get into it or unlock it. I believe this is a mortise lock (like this), but I have no keyhole on the outside, it's just door under the knob.
The bolt goes in an estimated 1.5-2 cm into the door frame. There is a small window to the bathroom, but it's 10 feet up from the ground outside and I would be going in head first about 5 feet to the tub. The hinges are on the inside of the door and the door swings into the bathroom.
Any ideas on how to unlock the door or get inside? Or even an idea of how this could have even happened would be nice to know?