Miss Franny
A school headmaster had interviewed, and offered a job to a lady teacher called Miss Franny.
He was a bit concerned about introducing her to the whole school at assembly, in case he pronounced her name wrongly. So, all weekend, he kept repeating this reminder to himself - a woman's thing with an r in it, a woman's thing with an r in it, a woman's thing with an r in it, and so on.
Come Monday morning at assembly, the headmaster stands up in front of the whole school and says:
Good morning children, I'd like to introduce your new English teacher - Miss Crunt !