Not at all Heidi! Hijack away!
We're in the same boat. I think my little guy's problem is a territory issue. He bit once when he was standing at the kitchen gate waiting for his sippy and another child beat him there, then again when another child hugged my ds (he feels like my ds is HIS. They play together constantly). So i'm thinking this may all stem from the toddler creed. What's mine is mine, what's yours is mine, if it looks like it's mine, it's mine, etc.