Post-Warhol, a whiff of glamour, kitsch or celebrity no longer tarnishes an artist's reputation.

FORBES: Magazine Article

And if you're a fan of Major League Baseball, I think it -- it tarnishes an entire era to some degree.

WHITEHOUSE: Presidential Press Conference

Sponsors, ranging from consumer-electronics makers to automobile firms, may soon start questioning their involvement if they perceive negative publicity tarnishes their brands.

WSJ: HEARD ON THE STREET: India Is a Risky Ballgame

Ultimately the weak prey off of the strong in the NFL, and this, at least on the margin, softly tarnishes what remains a brilliant product.

FORBES: To Be Truly Great, the NFL Must End Its Soft Socialism

The labor union at Thai Airways International PCL, meanwhile, singled out "Battle of the Angels" for special criticism, saying it tarnishes the reputation of flight attendants and is a far cry from day-to-day life in the skies.

WSJ: Hungry for Drama, Chinese Viewers Send Out for Thai

And while being able to look up the contents of your fridge as you enter the supermarket sounds compelling, knowing that the owner has to manage the list manually (there's no UPC code scanner and RFID is still just a dream) tarnishes our enthusiasm quite a bit.

ENGADGET: LG's Thinq automated oven, refrigerator, and washer / dryer are the future now (hands-on)