Who are the idiot snow flakes who don`t want you to kill flies? I mean that is far more concerning then if flies can fly in a vacuum chamber. WTF man. Just complete idiot`s everywhere.

Mate, you need some basic physics lessons ...flies fly by wafting the air with their wings. No air = no flying. That's completely different from, say, a rocket which 'flies' by pushing material it already contains one way causing an equal and opposite reaction. Your 'proof' regarding flies cannot be extended to include all motion.