Violation of free will is not something to be taken lightly. It does have a karmic/cosmic effect on both or all parties. It is very important to understand that. When we want something badly, sometimes we can pressure others into doing that we want them to do. I must admit that I am sometimes guilty of doing this myself mostly very small scale. We all are, guilty of this, it's part of being human. But we must take into account the fact that when we push others no matter how little the issues is, it is still affecting or violating the free will of others.
Emotional blackmail is one of those things where a person feels they have to give in to the other person. That is a downright nasty thing to do especially if you know what you are doing and it is for selfish reasons. Again we are all capable of doing this to others.
But this is one of the nastiest forms of energy stealing and violation of a persons free will. I have just had it done to me. It made me stop and think about the situation, and prompted me to just comment here. When it is some one in the spiritual community, that does this, that person knows full well what they are doing and violating the free will of an other person/being. That is a grave error in judgement as the flow on effect or cosmic response to a person that knows what they are doing is wrong then the full force of the cosmic or universal law kicks in.
Yes it is hard being a human, sometimes we want something badly enough that we don't think clearly. Like I say I can admit to this failing myself, so I understand where people are coming from, but it doesn't excuse or nullify the effect by universal law, not to mention the energy theft by the individual taking and giving nothing in return. Whether that be unconditional love, a cup of tea or what ever. Energy must be kept in balance so please be careful.