mc5 - ... so help me God.

The late Joyce Grenfell was the world's most prolific Concord pilot.

She could also whistle all of the National Anthems of the Communist bloc countries backwards through a sieve.

All the National Anthems of the Communist bloc countries are variations of the Birdie Song.

If you sing the Birdie Song backwards, you will conjure the shade of Karl Marx.

Karl Marx' shade is lilac with a hint of rose.

Hypodermic needles can only be grown if the relative humidity is above 80%.

The hole through the centre of a hypodermic needle is created by specially trained bacteria that eat metal.