Hi, I am fairly new to blender, I am really confused when it comes to blender. I am trying to make a simple door, but when I parent the parts together and start it the parts randomly freak out, spin, and go in random directions off screen. I have no idea why though because all I did was parent them, no code, no physics. Once I did get them to not freak out, so I then tried to put them in solid body physics, but it started to freak out again. What is going on? Help?