Biting...Hitting...Pinching...

So in the last few weeks, Hunter's behavior has gone DOWNHILL. He is definitely in the "Terrible Twos" and it is not a fun place for a mommy to be. Yesterday we got a call from day care and he had bitten a little girl on the face. His top two teeth drug down her face forming two eye looking lines and the bottom teeth formed a smile so it looked like a smiley face. I was so embarrassed. The hard part is the only advice I can find anywhere is that it is a phase he will grow out of. How long does this phase last? How many children will get hurt in the process of him growing out of it? Will I ever have my "good kid" back??????? Today day care said he did better, but she didn't say he did good......sigh.