Our Very Own Lightbulb Joke

How many librarians does it take to change a lightbulb?

5

1 to research the best method of changing a lightbulb

1 to catalog the method chosen by the reference librarian

1 to manage the project

1 to assign the actual changing of the bulb to a library assistant

and 1 to check out public access computers to patrons while all the others work on this special project