system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] Could Martian Manhunter or some other powerful telepath calm a Red Lantern down, or make a Green Lantern afraid? How much effort would it take?

I know Martian Manhunter was able to make the Joker sane for a little while even if it took a tremendous amount of power. Could the same be done to beings powered by certain emotions?
gpt
Lanterns are inherently beings of immensely strong emotions, empowered by a ring, so they're hard to control. They can also make constructs to boost their immunity. 

So, they would probably have to beat them into submission or ambush them.