Good employers do not just take anyone; if they decide to take you they must have a reason, which normally is that you fit their ideal candidate's profile. If so, they will treat you well to keep you. It is a trait inherent to any good and reputable, ethical business.

If employers are wise they would stick to the likes of Collyhurst Sewer Worker Retired and myself as opposed to grumbling malcontents from universities, all still bitter and twisted about not making the grade in their own countries. The Sewer worker and i had long fulfilling careers back in Blighty- teaching kids oral English was a natural progression in the twilight of our lives.