What is the best way of fixing a door that keeps swinging closed?
My bathroom door won't stay in the "full open position", which is becoming more than an annoyance.
The problem became worse recently. My 9-year-old nephew was going to use the bathroom and I could hear him slamming the door a couple times trying to get it to close. After that I found a small piece of wood on the floor. It was a thin piece of wood, like part of one of those paddle sticks used to stir pain. I don't know if that was put somewhere (maybe near the hinges?) by the contractors at some point to prevent the door to swing closed.
Regardless of that mysterious piece of wood, what would be the best (by Do-It-Yourself standards) way of fixing a door that keeps swinging closed?
To clarify, the door closes well and stays closed. But when you leave it open, no matter the angle (sometimes even with the "full opened" angle/position), it slowly goes almost to the "closed" position. It doesn't shut closed by itself. It remains ajar, which is what increases our chances of us bumping into it.