Rat traps can spawn the paralysis vent far away from the key

[blossom7]

I've noticed this a couple times in the past, however this most recent example is too odd not to call attention to it. Personally, I don't feel like such a "free" key should exist in the game. In case anyone agrees and would like to work out a solution: the version number is 1.9.3, the seed number is 262015333, and the trap is found on D2.