They hit you out of nowhere.

 When bad things come, they come suddenly, without warning.

 We rarely get to see the catastrophe coming, no matter how well we try to prepare for it.

 We do our very best, but sometimes, it's just not good enough. We buckle our seat belts, we wear a helmet, we stick to the lighted paths. We try to be safe.

 We try so hard to protect ourselves, but it doesn't make a damn bit of difference, 'cause when the bad things come, they come out of nowhere. 

The bad things come suddenly, with no warning.

 But we forget that sometimes, that's how the good things come too.