This picture frame by Odoardo Fioravanti is specifically designed to annoy people with obsessive-compulsive disorder.
The Inbolla frame has a spirit level in the top but the image is mounted at an angle, so Fioravanti's victims must choose between a level frame and a level horizon.
It's in production with Italian brand Corraini.
Photographs are by Emanuele Zamponi.
Here's some more information from Fioravanti:
Obsessive–compulsive disorder (OCD) is an anxiety disorder characterized by intrusive thoughts that produce uneasiness, apprehension, by repetitive behaviors aimed at reducing the associated anxiety, or by a combination of such obsessions and compulsions. It’s a common mental disorder, usually with innocuous consequences. Symptoms of the disorder include excessive checking of car’s lock, turning repeatedly on and off lights before leaving a room, climbing a stair starting always with the same foot or straightening the picture frames. At the worst these rituals can bring people to a “decision’s paralysis”.
Inbolla is a picture frame with a bubble level in its edge; the frame contains a specific slanted picture.
This object challenges ironically the OCD by putting people in a dilemma: is better to maintain the bubble level in balance, leaving the picture slanted, or to prefer an upright picture and a misplaced frame?