Haha. Yes, dangle is basically introducing a physics system to your character - so if done the wrong way it can mess things up pretty badly. The 3 rules of dangle are:
1. Only put dangle on independent parts.
2. Make sure the origin is where you want it to attach and the dangle handle is where you want gravity to pull on.
3. Stapling at the origin can help keep the part attached correctly.
Thanks! I'll have another go and see what happens. Love your videos by the way, they have got me this far within character animator!