Mistakes Were Made

• WWizards of the Coast2022-10-07
  Official Ruling
  You can’t bring your own fire extinguishers. They must be natural to the room you’re in.
• WWizards of the Coast2022-10-07
  Official Ruling
  To count, it must be a real fire extinguisher, a portable device that discharges water, foam, gas, or other material to extinguish a fire. It can’t be, say, a glass of water.
• WWizards of the Coast2022-10-07
  Official Ruling
  You must remain in your seat while looking around the room. No, you can’t pick up your seat and walk around to get more Squirrels.

Rulings via Scryfall