When you tell someone no it should mean no. You can tell anybody no or turn down any situation. No should mean no not yes. Yes should mean yes not no. Why can't people comprehend that?
It does not mean that the person has that some sort of unspoken permission in doing something that is not needed or against the other person's will.
For example, if a man is trying to get lucky and is not taking no for answer. So, he picks a random girl that may be willing to give some time to give to the desperate guy but she decides things are not exactly normal about this guy and a lot of red flags are up and waving around. She tells him no numerous times and he isn't taking no for an answer. She leaves the location and he follows her and decides that she "deserves it" and rapes her. He says she "deserves it" because of her outfit. She didn't "deserve it" because she clearly told him no and her outfit was not skimpy and was covering the majority of her skin, she wasn't acting desperate as he was, and was not being flirty or that interested in the people hitting on her. Was she a victim in this case? Yes, she was, she never asked for this to happen for her. The guy got away after he was finished with his task.
This is probably a bad example but was trying to make a point
This also can go along with so many other situations as well. If a person doesn't feel comfortable with a situation or being around a person or group of people. It is OK to say NO. Just follow your intuition and instinct or that gut feeling. You are the one who is in control of your own life. Things will fall into place and you will find your true self and figure out who your true friends are.
Remember to love one another and treat others the way you want to be treated.
Remember if you don't feel comfortable with a person or situation. Do what feels right and say no or leave.