Choose your words carefully. They may come back to destroy you.

Airing last night immediately after "Hook, Line and Sinner," the promo for next week's Grey's Anatomy have us our first glimpse at what may be the doctors' biggest case yet.

At least in the literal sense, and we'd probably be sent to sensitivity training - which Bailey mandates for the team after a new patient's arrival - for using that play on words.

Indeed, their 700-pound patient with compounded medical issues proves challenging in every sense. Not surprisingly, in this "How Insensitive" promo, we hear the following line:

Yang, you're off the case.

[video url="http://www.tvfanatic.com/videos/how-insensitive-promo/" title="How Insensitive Promo"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.