Letter from Vault-Tec (Fallout 3)

A  can be found randomly in mailboxes of ruined houses across the Capital Wasteland.

There are two versions of. One informs the recipients that "their application to get into a Vault has been denied, however Vault-Tec will retain their deposits" in case an opening appears. Another version is addressed to Mr. and Mrs. Gomez, informing them that their application to get into Vault 101 was accepted. This may be a reference to Officer Gomez and his relatives whom the Lone Wanderer meets in Vault 101. This is an example of the dark humor that is an inseparable part of all Fallout series games.