Apologetic Attacker
Likely to occur when the protagonist needs to incapacitate or remove someone from the equation, and the individual is innocent or hasn’t done anything wrong given current circumstances. The attacker will apologize or at the very least feel guilty about their actions but perform them anyway from a feeling of necessity. A blunt, bludgeoning object or weapon is normally utilized to subdue the person (such as a blackjack), and the victim is often hidden safely afterwards because the hero knows they’ve done something questionable.

I Surrender, Suckers
They’re cornered. They know it. They surrender. You accept their offer and lower your guard - surprise! They strike! The wound is grievous. This allows them a position from which victory is assured or escape becomes a possibility, turning the tables. A variation involves the enemy allowing themselves to be captured, so that in time they can undermine you or your organization from within.

Wounded Gazelle
Using injuries, real or fake, to influence others into doing what you want. Refers to a mother gazelle (as well as certain birds and deer) pretending to be injured to lure a predator away from her young. Once creating enough distance the pretense is dropped and the mother bounds away, leaving the predator in the dust. A.k.a. crocodile tears. When humans use this trick their motives are often less noble.

There are so many tropes I'll have to come back to this later, haha. Too busy right now.