What, me, worry?

While you are all obsessively refreshing CSPAN and CNN, you can surely take a moment to weigh in on a pressing issue relating to the English language.

Is there any region or class that pronounces umbrella as 'umbrella, as opposed to the OED-sanctioned um'brella (as per OED rules, main stress is shown by a ' preceding the stressed syllable). People are always making fun of me for how I say this word and I am in search of any source for my oddball pronunciation.