What do i do if a group of mexicans tried to mug me but i said "f* you" and walked away? do i take revenge?

Answers:
Naw, dude. You walked away clean. Game over. Be satisfied with being both brave and the better person.

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If you got way safe, count your blessing s and let it go. Take the high road.

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no, you should just be happy they didnt already beat your *** and take your stuff

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Yeah just keep escalating the situation, never mind cooler heads.
I mean what is the big deal, this world is a bad place and people get mugged and killed no use trying to "get" vengence, it will only lead to more violence.

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What good would come of taking revenge? Violence begets violence.

I'd suggest telling the police. Or if you're really feeling adventurous, contacting your elected officials to see what they are doing to address the structural impediments to upward mobility among newly-arrived Latin American immigrants. (You might ask yourself the same question).

Problems such as yours will not go away unless the underlying causes are adequately addressed.

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Revenge for what? You said they tried to mug you, which indicates they did not.
However I don't really believe by just yelling "F you", would have stopped any group that wanted to mug you.
You are lucky they didn't kick your butt for yelling "F you" at them.