Some more verses from a Norfolk friend of mine:

The first one to come in was old Mrs Porter
Now she'd been doing something that she didn't oughter
For she had been out with her unruly daughter
And nobody knew she was there.

The next one came in there was old Mrs Penny
She thought a big flea was a-biting her fanny
But when she got in she found ever so many
And...

And the last one to come in was old Mrs Whittam,
She had some new pants and she thought that she'd split 'em
But when she got in there she found that she ... hadn't
And ...