We've got the results of a new study on the most common LIES parents tell their kids. Most of them are basically harmless . . . but a few are just about jacked up. Here's the top 10 . . .

#1) "Santa Claus will come to bring you presents on Christmas Eve," 87.6% of parents have said that.

#2) "If you don't come with me now, I'll leave you here by yourself," 67.5%.

#3) "If you put this tooth under your pillow, the Tooth Fairy will bring you money," 65.8%.

#4) "That's beautiful piano playing," 59.3%.

#5) "There's no more candy in the house," 57.5%.

#6) "We can come back and buy you that toy next time," 47.8%.

#7) "If you don't quiet down and behave, that lady over there will be angry with you," 34.5%.

#8) "I didn't bring money with me today," 32.7%.

#9) "If you lie to someone, your nose will grow," 21.2%.

#10) "If you don't follow me, a kidnapper will come grab you," 17.5%. (BBC / Time / T and F Online)