How to discipline a toddler?

I was so proud of my little man. He was an angel in public and at home – always all smiles and love.

Where did he go?! Now he’s 19 months old, starting to “use his words” for certain things, and still just as happy as ever… but now he’s become violent and defiant!

He only hurts me and his daddy. He’ll pinch both of us – hard – and slap me in the face. He pulls off my eyeglasses and throws them (very much not fun for half-blind me). He’ll get hold of something dangerous, and when we try to get it from him, he’ll laugh and run away.

“Time Out” is met with laughs. He honestly thinks it’s a game. He sits down, mommy says “time out”, he laughs and gets up. Mommy sits him down and says “time out”, he laughs more. Utterly useless. Whoever came up with this “time out” thing was on some serious drugs.

What the heck do I do? I don’t believe in spanking, but even when I’ve tried it, he just laughs at me.

What to do?