IN lab work ( Porton Down again) it was said ( and verified by electonic shake-ometers) that one's hands were steadier when transfers were going an eentsy bit wrong.
satan bug and all that
[On 1 August 1962, Geoffrey Bacon, a scientist there, died from an accidental infection of the plague. In the same month an autoclave exploded, shattering two windows. Both incidents generated considerable media coverage at the time].
I feel there's a difference between swear words as such which can get tedious and the kind of inventive picturesque hilarious swearing that was in - for example- The Thick of It. Can't remember who wrote that