I did a faux pas like that, myself..

Got my first surround sound and wanted to demo it for my mom.. so, I put in Savong Private Ryan, cuz, seriously, the opening battle scene is spectacular for surround sounnd.. of course I wasn't thinking that my mom grew up in Germany during WWII, so she was witnessing a reenactment of her friends and family in battle.. not my smartest move ever..

Probably the worst surround sound movie:
Jaws.. very little surround sound effect, sadly..

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Friendship is like peeing your pants.. Everybody can see it, but only you can feel the warmth..