I am thoroughly confused.

Your own child had this teacher that you don't care for? And your child liked her so much that she wished she didn't ever have to go to music or PE and could just stay in the room with Mrs. Q all day?

Can we assume that Mrs. Q is a decent enough teacher, since the principal who is 'on top of everything' saw her as good enough to invite back for a long term sub position?

And I am really in the dark as to why anyone thinks it isn't fair that she has come back to sub and be paid for it. If she has many years of experience under her belt, do the people who are gossiping about her just think that since she is retired she should be coming in on a volunteer basis since she doesn't have anything to do anyway?