Miley Cyrus can't be blamed for teens' raging hormones, but she can be blamed for teaching them to twerk.

One high school in Vermont is so scared that kids will twerk and grind at school events that they cancelled them all. The principal of that school wrote on his blog that previous attempts to ban the inappropriate dance moves had been futile, and this was a last resort.

Many schools have issued zero-tolerance "twerking contracts," written agreements signed by students saying they will not engage in the raunchy dance or anything like it.

Yale University professor of Psychology Dr. Alan Kazdin wans the bans may actually make the dance moves seem more attractive to teens and says, "Twerking is not the issue, it's a symptom of a larger cultural problem that sexualizes young women."