does the Content network factor in negative keywords?

i've jumped to over 1,000,000 impressions for may!

[ElizabethReynolds]

I'm wondering if the content network factors in negative keywords. i have a phrase that means something in the computer networking industry that could be paired with up to 8 other words that would relate it to airlines, restaurants, hospitals, etc, so i've included everything i can think of as negative words. i've had over a million impressions just for the last two weeks of May, and i'm wondering if i've totally screwed something up.

Thanks in advance,
ER

[eWhisper]

To customize Google contextual advertising for such special circumstances, we recommend you apply appropriate negative keywords to your campaign

From: [adwords.google.com...]

Short answer: yes