About how "honesty is the best policy" is not always true. Help me get started T.T

I'm trying to write a 3 page essay for school.

My topic is about how "honesty is the best policy" is not always true,
for example, you tell "white lies" when you say your friend's shirt looks good on them,
even though it really doesn't.

I desperately need help catching a "hook" to start this essay.

PLEASE HELP!!!
thank you

I had a bad argument with my roommate. I said that you obviously have to lie sometimes if your nation is being invaded, of someone is trying to harm you, and so forth. Moreover, I said if this gray area exists, then there are also other situations that warrant lying. He said no, that honesty is important in almost all situations.

I think we had a misunderstanding... we must mean the same thing. If you were part of the underground railroad helping slaves escape to freedom in 19th century America, you would have been lying sometimes.

Sometimes it is necessary to lie in order to compensate for other people's aggressive or zany actions. Ha ha... I hope that helps you get some ideas...