I wanted to say something but didn't want to cause a scene. Think he did feel the bad vibes, he began to look uncomfortable about his bad decision after a while.
I occasionally hear young teens using profane language and then looking around to see if anyone has seen how 'grown up' they are.
Sadly the culture has been so corrupted by the left that it's becoming quite the thing to be rude, disrespectful and vulgar in public.