Originally posted by Philosophía
If I punch you in the face, is you getting punched in the face a side-effect?It's literally defined by it being intent, so this is quite the stupid thing to say.
http://www.dictionary.com/browse/side--effect
https://www.merriam-webster.com/dictionary/side%20effect
http://dictionary.cambridge.org/dictionary/english/side-effect
If you punch me in the face with your fist because you wanted to give me a black eye, it's both correct to say "Phil gave me a black eye" and "As a side effect of Phil's punch, I got a black eye".
Just depends what you want to emphasize, and it doesn't depend on whether or not you cared more about giving me a black eye than punching me with your fist.