"But the truth is: you don’t know how you’ll react to your worst case scenario. None of us do. Not until it happens." 
- Grey's Anatomy

OMG.. i can write the mer-logue for GA! i was just explaining something similar to someone in a convo a few days ago (before the above quote came out) about how we can never truly know how we will respond to the horrible things that happen in life and the only way we can find out is only after we have experienced it.. so even though the ppl around us may promise or believe that they can be there with u thru thick and thin.. despite their best intentions and beliefs, no one is 100% sure it will be the case..