Sam and three other teachers work in a block of four adjacent classrooms, numbered A6, A7, A8, and A9. Although (perhaps) they don't deserve it, their students have created quite uncomplimentary nicknames for them; one is 'Flabbz'.

From this information, and the clues below, can you determine which room each teacher uses, and their nicknames?

1. When 'Gonzo' teaches, she is so loud that her voice disturbs Jan and 'The Wasp', who work in the rooms adjacent to hers.

2. The four teachers are Liz, the teacher in Room A7, 'Crustie' (who does not teach in A8), and the only male teacher, Mike.

3. Jan does not teach at either end of the classroom block.