Fallout: New Vegas Easter Egg - Holy Hand Grenade

In camp searchlight on the east side of camp, there is a church basement. After you go down inside and kill a couple of Golden Geckos, on a table there will be a box with some "Holy Frag Grenades" and a sign with the instructions "Holy Hand Grenades. Pull pin and count to 5 (3)" with the 5 crossed out and the 3 written next to it. This is in reference to "Monty Python and the Holy Grail," where they use the Holy Hand Grenade with the miscount of 5 instead of 3 initially.