Quoting Candance Jones:" I already gave him his dad's old doll because thats what his mom did, but he just slammed it head on ... [snip!] ... and the through the pour doll in the trash. I retrived it and plainned on trying again when our daughter actually arrives. "
You need a baby doll, too.
Carry it around like a newb. Feed it, cloth it, change it, love on it, and play with it...like a little baby.
LO will see you and copy you. By time your LO gets here..he should be used to you having the baby and know how to be gentle.