A cornered rat will bite the cat

Stuck in a rut; Stuck in the past

A friend in need is a friend indeed

Come seeking shelter and you will not be harmed

The lion spares the suppliant

a person of high rank

tiny hill

A sudden turn of events

The truth has been revealed

you can't teach someone who doesn't want to learn

dome; rising

You don't change horses midstream

criticism and praise

narrow; narrow-minded