Mike Tyson once knocked out a garbage man after throwing away a possession related to one of his beloved pigeons by accident. Renowned for his destructive power in the ring, Tyson has shown he has a soft side and famously has kept bird coops throughout his life. Even now in his 50s, Iron Mike oversees several aviaries where he stores his beloved pigeons, a habit that began as a youngster. And growing up, Tyson was fiercely protective of his birds – which has led to some brutal confrontations in the past. Back in his youth, the New York-born star was left grieving one of his pigeons that had pa…