Missions, Mining, Manufacturing & whatever.

Having Fun.

Definition: Fun (fŭn) [fuhn]
noun
1. A source of enjoyment, amusement, or pleasure.
2. Playful, often noisy, activity.

idioms
1. for or in fun, as a joke; not seriously; playfully
2. like fun, Informal. certainly not; of doubtful truth
3. make fun of, to make the object of ridicule; deride

Origin:
1675–85; dial. var. of obs. fon to befool.

Mean people are no fun. - Thom Filicia