Radeonx said:
2. To persuade or induce to have sexual intercourse...I don't see how persuading someone to sleep with you is unethical.
There's always a difference between the dictionary meaning of a word and how its used. In addition, there is always a grey area with certain types of seductions and similar, depend on where and when it happens or the motives of the people involved. For example, say I (despite the fact I still can't even work out how to flirt) ask a girl over for dinner. I do a home cooked meal, play the silly music and do that whole romantic cliche thing some find romantic. That would be a good style seduction.
Lets change the situation. I'm the girls boss. We've been working together on some big presentation or some crap for a few nights now. Note that this girl really is the best person for the job, and so I didn't set this up on purpose. We win the presentation, and as a reward (something I may or may not have as a company practise) I invite her over for a home cooked meal. Without realising it i put the moves on her, and then things end up as type 1).
Now lets take type 3. There is a girl, cute girl, who I happen to know is having troubles with her boyfriend over her working hours. She's cute, and so I want to hit that. So when there is a big presentation coming up, I ask her to work with me on it. I deliberately lose track of the time/keep her working late over a period of a couple of weeks, something that can be excused by the working on the presentation/crunch time. The fact that I'm doing it to make her boyfriend look worse and worse, as she seems him as completely not understanding the importance of the contract/ doesn't understand why she loves the job so much.
I on the other hand, are 'reluctant' to talk about it, even as I act reasonable and calm about everything, as well as 'trying' to get her to go home and talk it out with him, (despite manoeuvring it subtly so she can't). As the crunch time the stress rises and builds, slowly causing their home life to be wrecked ruined (which was the plan on my part). Then we win the contract, and as a reward I take her out for dinner. For the sake of this there was no booze or anything, merely a celebratory meal between friends and co-workers due to a job well done. Then I invite her back to help me finish everything up, and we end up having sex.
The entire thing was planned for by me. I didn't do anything illegal or immoral, nor did I in any way shape or form do anything that could be considered compulsion or forcing her. Nor did I even attempt at using booze or similar substances. But the fact of the matter was that I deliberately broke apart her marriage/relationship/whatever just so I could get laid. Depending on the type of person I was, I might not even bother calling her back/start bragging about everything I did the next day. Especially since I'm her boss (despite in no way shape or form using this to pressure her).
While I didn't do anything illegal, I can see about a dozen rules of morality and similar broken to do so.
4) This scenario is exactly the same, and it was YOUR girl/partner that I ruined the relationship so I could sleep with.
5) Same as 4) only this time I'm your best friend, despite being her boss (I might have given her the job).