What should I do about farting brother on me?

Yesterday I accidentally lost my brothers (only) basketball. (No I can't go find it because it went downhill in the woods where there are lots of spiky plants and sticks and poison ivy) He got mad at me. Then today I had my best friend over and he (in front of my best friend) sat on my face and started farting on me about 10 times. It was really gross and embarring. He did it for revenge. I could always buy him a new basketball but he cant take that back. I am really mad at him, what should I do? Should I get revenge?