Is the following an "attempted sexual assault?" many of these researchers would say, "yes":

A man introduces himself to a woman, and asks if he can buy he a drink. She politely declines. The man leaves and there is no further interaction. 

Why is it an attempted Sexual Assault? Because the man was trying to lower her inhibitions and coerce into sex by plying her with alcohol, and those under the influence of alcohol cannot consent. Add another sex offender who just escaped justice.