A very fat woman at work was giving me a bunch of crap because I spent $4,000 on a mountain bike. She told me it was stupid of me to waste the much money on a bike. I responded that it wasn't a waste of money, but an investment in my health.
...she then responded with the absolute stupidest thing I've ever heard:
"Well, what's yer health gonna getcha???"
Actually, lack of it got her fat husband sent to an early grave.