What's that got to do with the price of eggs?

A rhetorical question calling attention to a non-sequitur or irrelevant statement or suggestion made by another person. Primarily heard in US. Yes, I agree that health care is an important issue, but what's that got to do with the price of eggs? We're discussing tax incentives for businesses—not exactly a related topic!

Common Names:

Name	Pronounced	Usage
Reinaldo	-	Portuguese, Spanish
Ahura Mazda	ə-HUWR-ə MAZ-də (English)	Persian Mythology
Zhong	-	Chinese
Sampo	SAHM-po (Finnish)	Finnish, Finnish Mythology
Bunch	[bʌntʃ]
Maral	-	Armenian