Yoga Guru's Licence to Molest?

I think that there must be do's and don't in every field where there is physical contact between the sexes.This is applicable even in the field of sports such as football.

But what about indoor pursuits such as in dancing and yoga? Aren't there ethical standards and 'private space' to be observed by these so-called mahagurus?

The picture below shows how things can really go wrong.