If by 'fining' that means the rest of us get to point at them and laugh, then, yes, guys who wear their pants down below their ass should be 'fined'.

And I find it has more sexist overtones than racial: if we're going to start fining people for showing too much skin or showing their underwear, then we should start with all the chicks who come out in public half-naked. To be honest, I see far more of THAT than I see it with guys.