The driver in a car full of boys gets to hear all kinds of stuff, most of it gross :-) Yesterday, we had this convo:
Liam: Laurie, did you know I did a grown up fart?
Lavs: No, what is that?
Alex: yeah he did and it smelled really bad!
Liam: you save up all your farts for a month, or all winter, then you fart. It's really loud!