Four, one to change it and three to comment on the changing.
Change Why do we need change (It's cool, I go to a Lutheran church)
None- that's hardware.
One but the bulb will have to spend four hours in the waiting room.
They don't change it, they just take forever to find where to fit the batteries
Answer in comments.
Three. One to post it, the second to post a better punchline in the comments, and the third to complain that it's a repost.
So the Marine have something to hold on to.
They defend the ship with way more enthusiasm.