Every day, a male co-worker walks up very close to a lady standing at the coffee machine, inhales a big breath of air and tells her that her hair smells nice.
After a week of this, she can't stand it anymore and takes her complaint to a supervisor in the personnel department and states that she wants to write a sexual harassment grievance against him.

The Human Resources supervisor is puzzled by this decision and asks," What's sexually threatening about a co-worker telling you your hair smells nice?"
The woman replies, "It's Keith, the dwarf."