A word about skeletons

Some skeletons dance.
Some skeletons shout.
Some just want to know
What the fuss is about.

A few form a line,
Walk patterns in time,
And a few prance about like
They haven’t a mind!

I know all these things
Cause I saw them last night!
A row in the courtyard
That caused me a fright.

I crept down and watched
Til one saw me and said,
“Nighttime’s ours, Mr. Archibald,
Now get thee to bed!”