Without limiting the generality of the foregoing, a teacher shall lose seniority and the rights to further consideration for employment for any of the following reasons:
a) The teacher resigns;
b) The teacher fails to return to work after the termination of any leave granted by the Board;
c) The teacher is not re-employed within one calendar year after September 30 following the date of lay-off;
d) The teacher's contract is terminated for cause;
e) Any teacher on the re-employment list who refuses to accept a position for which the teacher has the necessary training, academic qualifications and experience to perform the work in the position offered shall forfeit all right of seniority and re-employment;
f) The teacher is employed by another School Board on a regular basis and on a Form 2 contract.
A teacher who has lost seniority as a result of the application of this article shall be notified as soon as possible that his/her teaching contract has been terminated.