Prank on Brother Backfires

My brother tried to prank me by locking me in the attic because Im claustrophobic. luckily I know the secret way out of the attic. he left me up there for an hour or so he thought. When he went up to get me, I turned the prank around on him and locked him up there instead. He was PISSED. He ended up missing work and I got him in trouble with his boss. Needless to say, he hasnt tried to prank me since.