What to call this...

Saturday evening, Jen and I were waiting in line at the Moolah Theatre to see King Kong. There were these two teenage boys with three teenage girls waiting in line in front of us. It was an 8:45p.m. showing and the topic of the three hour plus length came up.
One of the boys said, "this is late, so we'll be tired in the morning for church."
The girls said, "you go to church?"
Same boy, "yeah, you should come with us tomorrow."
(at this point I was getting excited at the fact that these girls may be going to church)
Then the oldest boy says, "yeah, we go to church. Every m----- f------ Sunday."

Obviously, I am disappointed that the one kid would use such language, and could make a huge rant about how this kid is a phony and those girls are hopeless if they even go to church with them, etc, etc.

But, I'm not so pessimistic. If the Word is there, I know that the Spirit uses the reading of the Word, especially the preached Word, to convince and convert sinners, bringing them to holiness and comfort, through faith unto salvation.
There's nothing in there that says a swear can stop that.