The bug: If you put drip stone on your head and on your feet, the damage seems to add 9 hearts.

Steps to Reproduce:

1. Place a dripstone stalagmite on the ground
2. Place 2 dripstone stalactites above it, with a supporting block
3. Stand up against the dripstone blocks
4. Break the supporting block at the top, letting them fall on you

Expected results: You don't take damage because the stalactite is falling onto the stalagmite not you head.

What Happens: You take 6 hearts of damage