You should have understood his limits enough to know you'd need to kill him once those limits were thoroughly violated.
There's nothing inherently wrong with forming the connections, you just need to know when you need to break them- and how.
[After all, it's important to know when you should kill someone vs when you should leave them to be tortured and permanently crippled as a prisoner of enemy combatants vs when you should frame them for treason and embezzlement vs killing their parents and kidnapping their children as hostages.]
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There's nothing inherently wrong with forming the connections, you just need to know when you need to break them- and how.
[After all, it's important to know when you should kill someone vs when you should leave them to be tortured and permanently crippled as a prisoner of enemy combatants vs when you should frame them for treason and embezzlement vs killing their parents and kidnapping their children as hostages.]