Get a toddler to stop hitting??

My son, who is 19 months, hits me a lot. I've tried telling him it hurts, that it's not nice, gently holding his hand so he stops hitting me, ignoring him entirely, and honestly nothing works. He finds it hilarious. Also, he only hits me. He usually only hits me with his toys while he's playing. Not when he's mad or over excited. Seems to think it's part of the game.About the only thing that stops the hitting is to take the toy he's whacking me with away, but that always results in a fit. Overall, he's a pretty sweet kid, but man... He can hit kinda hard!I was able to get him to stop biting me (mostly) by convincing him to give big hugs when he was over excited. Again, he would only ever bite me. Now he only does it when he's over tired and mad. Of course, if I catch him before he does it, we get a fit again.The two things - 1- why does he only hit/bite/etc me? Not his dad, his grandparents, his daycare people, or his friends? 2 - how do I convince him this isn't something that should continue?This is an issue that has been ongoing, and new stressors haven't made it any worse. He's a headbanger when he's upset, but we manage that by just ensuring he can't hurt himself and ignoring it until he's done. Paying any attention makes him more upset, but sometimes if he's having a really bad day, I'll rub his back a little while he cries until he's ready to be held. Generally though, if he's that mad, he doesn't want attention or to be touched. Just wants to get the frustration out. via /r/Parenting http://bit.ly/2JwgOh8