Every time he gets one, he only has it for five seconds.

Eh, Green Lantern's a clown anyway. He's better off sticking with his Batarangs.

Eh, Green Lantern's a clown anyway. He's better off sticking with his Batarangs.

Shall I give you dis pear?

a) Batman doesn't like the overwhelming amount of light associated with a power ring (he's the Dark Knight, for crying out loud!)

b) he explicitly rejected a Sinestro Corps ring (similar, but yellow and associated with fear), it's safe to say he doesn't want anything to do with them

It's because he doesn't have enough willpower. He's too busy crying like a little bitch. 

It's because he doesn't have enough willpower. He's too busy crying like a little bitch.

Lets see, Green ring rejects him because he uses fear, Yellow ring rejects him because of too much willpower.