Arguably incorrect interactions with items/floors

[Quuxplusone]

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I know these are hard/impossible to fix, but I figure I might as well write them down somewhere.

• Pushing a thumper over the Living Cave's floor permanently kills the living floor. (You can clear yourself a path this way, since living walls won't grow adjacent to a bunch of regular floor.)
• Pushing a thumper over an opening/closing plate or open gate in the Palace permanently removes the plate or gate.
• Killing a slime monster spreads slime, which erases mines from the Minefield. (You can clear yourself a path through the mines this way, if you have a bunch of slime monsters following you.)
• In the Ocean, the incoming tide does not replace "slime" with "sea", so you can make a path through the sea with slime.
• Anywhere except the Alchemy Lab, pushing a thumper over slime replaces the slime with regular floor. (This is obvious from the code, so maybe it's intentional.)