Shakespeare: To Care or Say "Forget You I Have Better Friends."

Today my friend Suzanna tripped on a fry, and fell down.
Today my friend Nate burped in a girls face.
Yesterday my friend Steven wanted to train fish to fight.

These are my friends, and this is my life.

Lately I've been wondering "Why care what others think?" Mostly I've been wondering this because I don't know when to not care and when to care, thus I am stressed about everything all the time. I AM SICK OF IT. Looking at my life there are 3 cases that are up for debate on when to care, and when not to.

1) Thoughts of a stranger: Does the opinion of a random stranger matter? Yes and No.
I've come to this thought after placing myself in several situations. the first situation is a stranger I will never meet again. I met this person while on vacation, out of town, or out of my normal travel zone. these are the people where it's okay to fart in front of, be rude, smell bad, and say whatever I want. these kinds of people are everywhere, who cares what they think.

 The second type of stranger is the local kind. this is the kind of person one would see at a local market, movies, doctors office, and school events. for some reason I insist on being overly kind to them and curse behind their back, I am okay with that, because I will only see these people maybe once or twice again in my life if I never move towns and insist on going to the same super market. To me these people thoughts are temporary and chance are even if I do meet them again they wouldn't even remember me. so who cares what this person thinks.

The third kind of stranger is the king of stranger that I would meet at church, in a class, or at work. sure you don't know them but you see them every week. these are the people I keep a very strict no talking policy with. Never will i say more than a single sentence to these people yet it's very important to not trip or mispronounce a word in front of them. on a realistic level these people thoughts matter very very small, just because I never know when I might be stuck with an assignment with them.

If you're not a stranger than I value your opinion.