So that's what constitutes "bullying" these days, making fun of someone's water bottle?
According to a recent school training that I attended, looking at somebody cross-eyed constitutes bullying! In short, we are told that if some child says something that makes another child "feel bad", it should be considered bullying.
Personally, I believe that mollycoddling our kids like this will result in a nation of wimps -- people who are unable to solve problems/disagreements themselves -- people who, instead, run to "mommy" to tattle and have "mommy" fix it (Mommy being our Big Brother). We are already more than halfway there -- just take a look at our judicial system and the lawsuits being filed.
But, that's another tread!