My friend has been bragging about having slick tires in his Xterra for months now

Its not advice my friend.
Its the way it is.
If you have empathy, you are not in control of when you feel it. Do you follow me this far?
If the above situation happens to you, and during an interaction , your friend is nearly harmed and loses something of great value, you WILL feel bad for him.
A fully functioning adult is not in control of this.
If you do not feel empathy there is something wrong with you.

t. retarded sucker that gets scammed by phishing emails

people make their own choices and life runs it's course
nothing can be done about that

I am not saying you should do anything about it.
Is this too subtle for you to understand?
I am not even saying that the right thing to do is feel bad.
I am saying that a normal person feels bad and has no control over that fact.
Your friend does something stupid and pays a price, you will feel bad.
How is this being misunderstood?

>How is this being misunderstood?

It's wrong? If a friend does something stupid and something bad happens, there are a whole range of completely normal emotions you can feel in response to it.

If you were trying to carry 15 boxes of apple pies to a pie stand, and slipped and the pies flew up in the air and landed on you, I might find that fucking hilarious in spite of it being a total waste of your money, time, and effort and embarrassing to boot. I might also feel really sorry for you because I know that you spent your last dollar on those pies and you were counting on selling the slices to make some more money. Later I might feel frustrated or angry at you for being foolish and trying to carry all the pies at once in stead of making two trips like I suggested.

In fact, it would be extremely abnormal to be such a one-dimensional bleeding heart that all you can do is feel sad when you see other peoples misfortune. Empathy isn't just feeling sad when you see a bad thing happen. Me calling a dumbass friend retarded for doing a retarded thing isn't callous or sociopathic, it's empathetic because I know that if I were in his situation, I would think of myself as a retarded dumbass.