ST. LOUIS (KSDK) - Little white lies; we all tell them - to our friends, spouses, and even our bosses. So what's the big deal?

"It's not OK," explains our "Relationship Referee", psychotherapist Pattie Cashman.

Deceiving the people around you-even in small, seemingly harmless ways-can reap long term damage.

Watch the video player on this page to hear our "Relationship Referee" explain why.