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Doc Freemo 
"Don't be reckless with other people's hearts, don't put up with people who are reckless with yours" -- Baz Luhrman
I cant say its a trivial thing to do all the time. There is also the consideration of long-term vs short term. Sometimes you have to hurt a person to help them.
@freemo I was mainly thinking about how daily life gets in the way and makes things more complicated, but what you say is true as well.
@freemo Hm, i'd reckon learning how is a bigger task than deciding not to, once the general awareness of the topic is reached.