i had a similar thing happen...
on the way back home i was taking the city underground transit, and i was just going back to my place with some friends. this black dude (no racism intended) with a jays cap on with a fat blunt stuck in the side of the cap, right in front of his ear so that the elastic headband held it against his head comes up to me after i walked by him and asked "yo man, what the hell you think you punks doing" i was like wellll im actually going home now. he demands "where do you fuckers live???" so i told him some made up address on the other end of the city but he was still coming at me. "you know what ill do if i see you around here again??" i was a bit scared by this point, my friends were like wtf why is he talking to him. i did not know what he would do if he saw me again. "you punks dont even wanna know what im gonna do if i see you again, so fuck off"
this kid couldnt have been more than 16 or 17 years old, but he was a lot bigger than me and i was in 7th grade at the time so by the end of this i was shitting brix and it looked like he had a weapon in his waistband, i highly doubt it was a gun but it could have been a knife or something.