Do bad experiences ever change people for the bad if they survive them? Or do they just make you tougher/harder/colder/crueler/meaner? Why?

I thought I had corrected the question to read "better" not "bad". Do bad experiences ever change people for the better? That is the question I intended. I corrected it to read what I just told you but apparently it did not take. Can you answer the question as I intended it to be? It makes no sense as it stands currently. This post was edited by RosieG at December 31, 2016 6:47 AM MST

Yes, that makes more sense :) And I know one example where it did change the person for the better. One of my mothers childhood schoolmates married a guy who was blind, he had been playing indians with friends and got an arrow in one eye, then it got infected so he lost both eyes :(
A kinder gentler man I never met, and he was also incredibly intelligent.

Ps, I just read a post from someone here who had had to repeat a question-edit 5 times before it 'took'.