Fake friends are around when they think you're cool. True friends are around even when they think you're fool.
Do not be like the cat who wanted a fish but was afraid to get his paws wet.
I used up all my sick days, so I'm calling in dead.
I got your back You got mine, I'll help you out Anytime.
Perhaps we should keep our monsters about us, lest we become them ourselves.
Yes, it's rather funny, really, that next to no-one realized the snake that Harry set free in Philosopher's Stone turned out to be Voldemort's final Horcrux, Nagini.