[civilized]

I would like to offer a different perspective than the one you are getting from a couple other folks. Not being in the room it's hard for me to be sure, but my guess is that both of the following are true:

1. The person you tried to help could have taken your suggestions in the spirit intended, rather than leaning on a threatening or insulting interpretation of them.

2. You could structure your response in a way that would make your good intentions clear and make the other person more open to the information and less likely to feel threatened or slighted.

It could even be that, from some reasonable perspective, the other person is 100% to blame for the negative outcome, and still, at the same time, you have the ability to avoid such things in the future by adjusting your approach. It's like defensive driving: I'd rather not have accidents at all, and if it's possible to avoid them, I adjust my driving style accordingly. Regardless of how poorly others drive and how much to blame they'd be for accidents I prevented by being defensive.

That way, we can hopefully get the enjoyment of helping others, and the gratitude of those who are more inclined to be grateful, without the trouble of unintentionally angering those whose response is more... complex.