Movies
I am doing this to save your ass, but what I really want to do is drop you on it.
— Baby • Dirty Dancing

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
This is exasperated helpfulness. The speaker is going to rescue someone, yet openly admits they'd rather let them fall flat. The joke comes from the gap between the generous action and the annoyed feeling, delivered with cheeky frankness.
Context reviewed