Did I do the wrong thing?

i was sitting in the park across the street from my house and i was smoking a ciggerett. I finished one and then a few minutes later i needed another. i began to smoke the second one...... i was looking around i saw a bunch of teenagers. i saw them with a pack of malboro lights. they had there lighters out and were trying to smoke. they were choking and hacking and one even barfed on the ground!!!! i was laughing so hard!!! well they saw me and they came over. one asked me if i could teach them to how to smoke without choking and i said alright and i showed them how. they gave a couple lighters as a gift!!! then i saw a mom walking with her kids and dog and she was like giving me the look....starring me down!!! she came over and started yelling at me tell me that i was a bad person and i should arrested and she thretend to call the cops if i didnt leave!!! i got up and left. did i do the wrong this???????