When in that House M.P.’s divide,
If they’ve a brain and cerebellum, too,
They’ve got to leave that brain outside,
And vote just as their leaders tell ’em to.
But then the prospect of a lot
Of dull M. P.’s in close proximity,
All thinking for themselves, is what
No man can face with equanimity.
(W. S. Gilbert, Iolanthe)