So, you just spoiled Endgame for someone. You must think you're a really funny contrarian, ruining someone's ability to fully enjoy something they've been looking forward to. But in reality you're just being extremely rude and inconsiderate. The only funny thing about it is that you're pitiful enough to only be able to feel happiness by stripping it from others. Take it from a guy who spent 70 years frozen in ice-there's nothing cooler than being considerate to others.