You walked into the New Vegas Strip or The Strip and saw a deathclaw egg that was hatched, You heard a noise, you heard the growls of something, you looked where it was, it came from Gomorrah, suddenly the two doors get torn off its hinges, you froze a little seeing it was a Deathclaw, suddenly you saw more deathclaws emerge, unaware to you these came from Quarry Junction, so now you got two options, fight or run for your life