Four friends had an accident and a stranger was passing by and decided to help them,But he has no phone with him, inside the accident car They where five phones and all the phones has password, the stranger was not able to unlock the password to call for help and they victims all passed away.
My advice is dat you are too precious than wat you are securing (your phone), you can look your whatsapp, facebook, text messages and some other app.
PLEASE DON'T PUT PASSWORD ON YOUR CALL APP