If Walter Matthau were to be told that Walter Matthau had died, he'd ask for a second opinion.

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Scottish police decided to ask for a second opinion, and turned to the world's foremost authority on serial killers, the FBI.

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We might be acting in real-time, but sometimes taking the extra minute to listen to your gut, and ask for a second opinion, can make all the difference.

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"If you feel like your doctor isn't paying attention to your case, or you feel like you're just a number, or you're not having success after several cycles, it's really OK to ask for a second opinion, " Madsen said.

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