One of the more unusual situations involving touching without consent (a topic that the women here seem to have touched on) is that of Frotteurism. Defined as a sexual deviance in the subcategory of Partialism, Frotteurism is characterized by these symptoms:

Over a period of at least 6 months, recurrent, intense sexually arousing fantasies, sexual urges, or behaviors involving touching and rubbing against a nonconsenting person.

The fantasies, sexual urges, or behaviors cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.

So ladies, the next time some guy "bumps into you" while talking with his hands, yell out "Leave me alone you lousy Frotteur!". He'll be sufficiently confused for you to make a hasty and honorable retreat.