They’re usually making us laugh in Here Come The Habibs or Fat Pizza, but Rob Shehadie & Tahir Bilgiç are getting serious about an important issue. The comedians, who are busy with their Straight Outta Compo show at the moment, and Season 2 of the Habibs, have recently taken part in the Save Our Sons Walk in Melbourne, to raise awareness about Duchenne Muscular Dystrophy. Duchenne…