global warming...it's more problematic for our continued existence now the fact that we as humans allow poverty on such an immense scale might make one question whether humanities existence is all that swell a thing but...
People who Believe. Not the ones who think maybe, but the ones who absolutely believe absent any sort of proof. The naysayers would change their mind in a heartbeat with proof.
People who walk forward without looking, or people that step backwards without looking? Not much of a choice, I know, but I was bumped into repeatedly today by violators of both.