Bam Margera's friends are trying to get him help as his alarming behavior continues, but an attempted intervention on his behalf didn't take ... TMZ has learned.
Sources close to Bam tell us ... a couple of Bam's longtime friends organized the intervention earlier this month, while he was in San Diego, on the heels of his L.A.-area arrest for public intoxication.
Our sources say Bam's buddies told him they loved him and were worried about him and wanted to help get him back into rehab.