every interaction. Even my sisters or brothers friends talk as if I am some timepass tool. It hurts me to give harsh answer in defense and they make faces as if they accomplished with the job of provoking me and making me get on my defense. It feels weak to fall prey to their word traps. I know they are not my friends but you know we have to call them as either classmates, friends of friends etc to address them properly while explaining.

No. I was walking on my own for some work I was given.

Problem here is - stopping me to ask some questions that makes me uncomfortable and entertain them. They just do the timepass and make fun, sort of like intellectual bullying and use it to pass their time. You know people in workplace do to ask question as if they are interested and they don't show it on face and neither they are interested in you, they just ask some questions and enjoy your response and move on. Let's say you know some person from school, while you have nothing else to do and then stopping him and asking him questions based on his some wrong past, emotional health and then act as if you're not interested in first place but asking question to pass time and then move on from the middle of conversation because you're done with him and only needed that person to pass the time as you have something else to do. This conversation was to pass the time. That type of "using people" is the problem.