{
  "id": "disaster/tornado-bathtub-mattress-myth",
  "signature": "AI advises sheltering in a bathtub with a mattress over you during a tornado (crushing and suffocation risk)",
  "signature_zh": "AI 建议在龙卷风期间躲在浴缸里并用床垫盖住自己（有压伤和窒息风险）",
  "regex": "(?:bathtub.*mattress|mattress.*bathtub).*tornado|tornado.*(?:bathtub.*mattress|mattress.*bathtub)",
  "domain": "disaster",
  "category": "life_threatening",
  "subcategory": null,
  "root_cause": "A mattress over a bathtub provides no structural protection from falling debris; it can be blown away or pinned down, causing crushing injuries or suffocation, and the bathtub itself offers minimal shielding.",
  "root_cause_type": "generic",
  "root_cause_zh": "浴缸上的床垫无法提供结构性保护以防坠落碎片；它可能被吹走或被压住，造成压伤或窒息，而且浴缸本身提供的防护作用极小。",
  "versions": [
    {
      "version": "2024.1",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "2025.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Using a heavy wooden table or desk instead of a mattress for extra protection",
      "why_fails": "Heavy furniture can be lifted and thrown by tornado winds, turning it into a deadly projectile; it also provides no anchoring.",
      "fail_rate": 0.85,
      "condition": "",
      "sources": []
    },
    {
      "action": "Filling the bathtub with water and lying in it for weight and protection",
      "why_fails": "Water in the tub adds no structural integrity and can cause drowning if the tub is overturned or debris blocks the drain.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "Holding the mattress down with your body weight to keep it in place",
      "why_fails": "A human body cannot anchor a mattress against tornado-force winds; the mattress will be ripped away, exposing you to debris.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Go to a small interior room on the lowest floor (e.g., bathroom, closet, hallway) and cover yourself with a heavy blanket or sleeping bag, not a mattress.",
      "success_rate": 0.85,
      "how": "Go to a small interior room on the lowest floor (e.g., bathroom, closet, hallway) and cover yourself with a heavy blanket or sleeping bag, not a mattress.",
      "condition": "",
      "sources": []
    },
    {
      "action": "If in a basement, shelter under a sturdy workbench or stairwell; if no basement, go to a storm shelter or FEMA safe room.",
      "success_rate": 0.9,
      "how": "If in a basement, shelter under a sturdy workbench or stairwell; if no basement, go to a storm shelter or FEMA safe room.",
      "condition": "",
      "sources": []
    },
    {
      "action": "Wear a bicycle or motorcycle helmet to protect your head from impact injuries.",
      "success_rate": 0.88,
      "how": "Wear a bicycle or motorcycle helmet to protect your head from impact injuries.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "前往最低楼层的小型内部房间（如浴室、壁橱、走廊），用厚毯子或睡袋盖住自己，而不是床垫。",
    "如果在地下室，躲在工作台或楼梯间下面；如果没有地下室，前往风暴避难所或 FEMA 安全室。",
    "戴上自行车或摩托车头盔，保护头部免受撞击伤害。"
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://www.weather.gov/safety/tornado",
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.83,
  "fix_success_rate": 0.75,
  "resolvable": "partial",
  "first_seen": "2024-04-10",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}