There was a recent question about using photon grenades on the Borg, and that lead me to wonder:
In the original Star Trek, the phaser could be set to a feedback loop which would cause it to self-detonate after a minute or two (whenever was convenient for the story of course). I'm most familiar with TNG, less so with later series, but I don't remember ever seeing this done with other series' phaser models. So I'm curious if this was ever done later, and if the mechanic was at all changed.
After doing a bit of digging, I see that at least in the TNG Technical Manual piece on the phaser, it mentions there being the ability to disable the safety interlock with the intent to blow it up. So to be a touch more specific- have we ever directly witnessed (or had reference to) a phaser safety override in any Star Trek series besides TOS?