Some years ago, I did some stand in lecturing in basic electronics to 1st Yr Apprentices and NVQ students at a local college.
Knowing I was ex-Service, the senior lecturer warned me about not using the non-PC version of Black B*stards Rape...... in the lessons where we looked at resistors.
His version - he was afterall, a brown rice eating, tree hugging, lefty lesbian, single mother rights supporter tawt, just didnt do it for me or the students.
'Black Beetles Running On Your Garden Bring Very Good Weather'
The first time I recited the PC version, a black lad - who later joined up as a BENGO, says - 'Sir, aint that the rhyme that includes Black B*stards?'
Queue a choking sound from the Senior guy who was sat a the back of the class room quality checking my work!