1. Do that thing where it just tips over when you water it a lot. What does this mean?

2. So my problem is I always lose a bunch of dirt out of the drainage hole when I re-pot, and one of your points made me think of a question: what if I used a bit of newspaper at the bottom to keep all the dirt in while I'm repotting? It's NOT plastic and will likely disintegrate happily after a couple of waterings when the pot is established. Good idea? Bad idea?