藏起來的爆裂裝置
這一支把核心畫面推到最危險的一端：偽裝的是炸彈。
noun · B2
A bomb or other hidden device that is set to go off when someone touches or moves an ordinary-looking thing joined to it, such as a door, a box, or something left on the ground.
詭雷（陷阱炸彈）
核心畫面
Something completely ordinary — a door, a box, a line in a contract — with something waiting behind it. It was put there on purpose, and then left alone. Whoever does not look closely is the one who finds it.
booby trap 的核心畫面可以想成「一個看起來無害、其實在等人的東西」。門、箱子、地上的袋子、合約裡的一行字，…更多收起
booby trap 的核心畫面可以想成「一個看起來無害、其實在等人的東西」。門、箱子、地上的袋子、合約裡的一行字，外表都很普通。真正的機關藏在後面，而且是有人事先擺好、然後走開的。誰沒注意、誰去碰，誰就中。booby 本來是「傻瓜」的意思，字面就是「傻瓜的陷阱」，說的正是那個沒發現的人。所以不管是戰場上的詭雷、同學間的惡作劇，還是合約裡的小字，味道都一樣：危險被包裝成平常的樣子。From the word’s history
From booby, meaning a dunce or idiot — the trap is named after the person who does not notice it.
來自 booby（傻瓜、笨蛋）：這個陷阱是用「沒注意到的那個人」來命名的。
Wiktionary (kaikki extract, source_ref kaikki:3f6f69a190036ae4:1338734142:11714): 'From booby ("dunce, idiot").'
Three branches
惡作劇的小陷阱
同一套做法，後果換成笑聲：偽裝、等待、對方中招，只是掉下來的是紙屑。
noun · B2
A harmless trick that you set up for someone as a joke, so that something falls or jumps out when they open a door, sit down, or move a thing.
惡作劇陷阱
看不見的危險（延伸）
機關從實體換成文字或安排，但「表面平常、沒注意就中」這一點完全沒變。
noun · C1
Something in a plan, a rule, a contract, or a question that looks safe but causes trouble for anyone who does not notice it in time.
暗藏的陷阱