Dh and I took ds to the "naice" park this afternoon simply because the other nearby park has a skatepark attached and the surrounding area can be littered with glass and worse.
While we were there a group of 4 or 5 11-13 year olds turned up, monopolised the toddler swings and started smoking. Dh saw this and shouted over to them to "Clear off if you want to smoke, this is a kiddy's park." and one by one they slunk off.
The park was busy, lots of families with small children around but when the smokers turned up they all just moved away from them to the other end of the park.
It left me thinking, was dh bu? I don't think he was, had I seen the smokers before him then I would have said something too. The actions of the other parents makes me think we're in the minority.