How cruel people can be?

everyday i would passed by the same alley to get to my destination. now, i would notice the same scenario happened in the same alley with same faces, and it makes me wondering, how cruel life can be to us? It might involved only me towards this matter. somehow, i got clueless because i never knew their reason of doing it. my friend told me that it happened for any reason it could be. Yes, i guess so, every body did it for a reason. and it would be big misjudgement if i decided to condemn them for what they did. nobody can guess what is going to happen tomorrow. life can be so cruel if we don't know and don't want to know what we are doing. i tend to act like that in the past. but, some major event in my life taught me to give a big attention to what i am doing. Would it make everyone happy or i might hurt someone's without me knowing it. i am normal people, and i do make mistake just like most people did. People can be so cruel to the extent that even i can't understand. it happened in real life. when you start to believe and rely on something, that's when people can be so cruel towards you. but, when i think about it all over again, it is good to just forgive and let go of what had happened. not saying that i easily forget everything, but, to learn to let go will put you in ease.i, just like everybody else, went through frustration, sadness, hardest time in my life encountering human and their various behaviour. I don't care how hard it would be in the future, but, i know life must go on and i will strive it until my last breath and blood. gotcha spirit