Terrifying Presence is a perk in Fallout: New Vegas. Taking this perk unlocks unique dialogue options with certain NPCs that typically allow for one to begin a combat encounter with all enemies fleeing instead of attacking for 5 seconds. Talking to Ranger Milo and being warned about the Legion takeover at Nelson, triggering Back in Your Own Backyard. During Debt Collector, talking to Grecks after already obtaining his debt of caps to the Garret Twins. During Birds of a Feather, after bringing Ca