Well if you are for real, This is how I'm going to say it.
I don't care where you live, and how old you are. I don't care whether you're a spoon fed socialite or a poor kid living in the Eight mile trailer park. I don't care that it's a 4 banger blue hatch, or a ratty black vertable ( I don't know which is yours)
Lets say that you had a bad cold, and you had a runny, snotty nose. Let's say that just sneezed and a big green an yellow blob of boog made it past your (handkerchief if you're a socialite, sleeve if you live in a trailer) and now is on your shirt,.....up there right where you are gonna wear your "re-elect Obama" pin.
Now you'd be embarrassed if I pulled you aside and told you that you had a big, slimy wad of nose glue glistening there on your shirt, but you'd be way happier that I pointed it out on your way to the New Kid/BSB concert, rather than to have one of your front row groupie buddies point it out there in front of the whole concert audience.
( Not to mention in front of the NKOTBBSB's)
Yes, having a nasty wad of snot on your shirt is different, ( Just like that stacked wing) but take the advice that's being given here by so many others:
Go change your shirt, and leave the wing off.