It’s easy — heck, even polite at times — to tell a little white lie, right? Maybe it makes someone feel good about themselves or it helps you avoid an awkward social situation. But there are white lies and there are LIES lies.

And telling any kind of lie on your resume is a no-no, as Yahoo’s now-former CEO Scott Thompson found out recently. He got caught padding his resume by including a degree in computer science that he never earned. Robert Feldman, author of “The Liar in Your Life,” tells us why even the lightest padding of resumes makes you suspect. Listen to the audio player above and learn why you should think twice about saying that you’re “proficient” in Spanish, when really, all your Spanish skills can get you is an order of tacos at the stand around the corner.