Of course they are extremely unlikely to react positively to a stranger having a go at them, I certainly wouldn't. But they'll think about it, obsess over it even, and behave differently in the future.
Then if they do kick off you've got the camera footage.
Personally I feel it's worth having a go.
Of course they are extremely unlikely to react positively to a stranger having a go at them, I certainly wouldn't. But they'll think about it, obsess over it even, and behave differently in the future.
Then if they do kick off you've got the camera footage.