What was the craziest location that you made an audio purchase from?

My first "new" speaker purchase was from a department store.  They had a little "sound room" in the back, and there set a pair of Scott speakers with 15" woofers.  Someone thought it would be entertaining to punch their fist through one of the woofers.  The department store took the only reasonable option for them and marked them down to a ridiculously low price. I borrowed my dad's Corvair work van and home they went.

I used my sister's clear fingernail polish to "temporarily" put the cone back together.  
Expecting a "rapid disassembly" I was surprised they made it thru the Beatles AND The Dave Clark 5.  Years later, they were too big to todt off to the college dorm, so I sold them.  With a functioning, but esthetically challenged, 15" woofer.

Working in The Sears Tower (mid nineties), got the bug for some MM cartridge which was available at a small Hi-Fi shop in a western Chicago suburb. Took the train after work and was dropped at a small commuter station about a mile from the store. About a foot of fresh snow on the ground through which I walked in my dress shoes and pants. Made the purchase and caught the next train back. It's a rough hobby but someone has to do it.

A bar on Maxwell Street in Chicago on a Friday Night when I was in college. 

I bought some good cheap banana plugs in Bangkok Thailand.

Twice while driving up a windy road eating griild fish with chopsticks and reading the Darwin awards I rang up my Guru and ordered four Schumann Resonance Pulse Generators. The car was a rental from Hertz and was a bargen for $7.83.