What Franken did was to humiliate her in front of her peers using sexual innuendo. That is intended to cause others to take her unseriously. It wouldn't be "goofing off" if it were done to a sleeping man, hence the sexual nature of it.
It is sexual harassment in the workplace, intended to demean her and harm future opportunities if the others "in on the joke" are ever in a hiring position over her in the future.
-PJ
Then file the complaint when it happens. To give this credibility opens this up to us becoming a nation of law suits of childish crap that happened years ago.