I don't spank my kids. I spanked my daughter once and immediately felt like a failure.
Corporal punishment, spanking, etc doesn't work. I could use my own anecdotal evidence of my own personal history and seeing those around me who do spank or I could point to almost every study ever done that shows that corporal punishment doesn't work.
Adrian needs some help being a better father and making better choices. You don't father multiple kids to multiple mothers if you have your head on straight. And you don't hit your kid with a switch or shove leaves in his mouth or smack him so hard it leaves a scar on his face.