Honesty

Honesty is a tricky thing. The Bible tells you "thou shalt not lie" but is there certian situations where its okay to lie? For example a few days ago my mom was fliping through a Victoria Secret magazine when she came across a bright pink dress. My whole family was in my parents room watching American Idol at the time. In the middle of the comercial my mom goes " G.T. ( my dad) is it okay if i order this dress?" My dad glanced at the dress not caring then just started starring. This dress was bright pink with purple flowers all over it. He said flat out no it looks nasty and also you wouldnt look good in it. My dad slept on the couch that night.