Don't worry! the last stand (second chance) takes mood from 10 Minutes ago, so you should still have a good chance. I tested the mood with commands, and you only lose 20-30 mood within the first 30 seconds of steeping on spike trap. Though, if it hits your head, it can be -50 mood loss (or more) because of trauma from losing your jaw / eye. Opioids are also great to use after a injury that makes you depressed or in severe pain.