According to Blanton lying is okay when he said,”f you are hiding Anne Frank in your attic because her life is in danger,” in article 3 paragraph 11
If Anne Frank was in danger,if someone was looking for her to kill her,in that case you have to lie that she’s not in your attic.Another reason would be if you tell your dad that your mom is fine,when she is not,you protect him.For example,if your mom tells you she had been diagnosed with cancer,but she said not to tell your dad because he has heart problems and might get an attack,you would not want to tell you dad so you would have to lie.