You will know a friendship is not natural when you don't feel relaxed with

A bad friend is is worse than an enemy, an enemy you can see and avoid, but to detect an insincere friend is hard

Would a robber break in your home at night beating drums? Nope. This is how those who want to take advantage of your life come: Full of smiles and promising sincere friendship!

A bad friend secretly plots your downfall

Friend: A potential enemy with whom relations have not yet deteriorated to all-out war

Never be an insincere friend, never be manipulative, one day you will be discovered and lose everything