Eventually you will farm. It's inevitable. You will sit in front of a cave or in a small area or in front of some mighty doors and you will pour thousands of rounds of ammo into enemies until you get what you need to get/upgrade your legendaries/exotics. You'll do it in your big boy pajamas. You'll do it fully clothed. You'll do it in your tighty-whities. You'll do it eating food or listening to music or drinking a soda. Either way, you'll do it and you'll like it... all night long.