"(a) Both Applicants had been employed by the respondent company as bus drivers from16 May 1988 , initially working as spare drivers ... until placed on a permanent rota which in each case had been a 5 day rota working a 45 hour week. (b) Subsequently each of them was asked if they wished to volunteer to transfer to a 4 day rota [they agreed to that] (c) Both applicants worked overtime on a regular basis and although both had refused to work overtime from time to time, we were satisfied on the evidence we heard that there was no unreasonable refusal by either of them to work overtime. (d) Mr Willis had been told by Mr Walton that he had to improve his overtime work hours put in or he may be transferred back to a 5 day rota. This had not been said at any stage to Mrs Turnbull. Mr Willis had as a result of what he had been told, ensured that he did work overtime on a regular basis. (d) Both applicants had been issued with a statement of terms and conditions of employment... under the heading "Hours of Work" No hours were specifically set..."
"Schedules will be compiled on a four, five or six day week basis or any combination thereof in order to provide the most cost effective rotas subject to a scheduled daily minimum guarantee of 6 hours. In general, schedules will not contain a mixture of long and short days and will be the subject of local negotiations at each location."
"On the above findings we were satisfied that each employee had shown that they had terminated the contract of employment in circumstances such that they were each entitled to terminate it without notice by reason of the employer's conduct, that the transference from one rota to another under these circumstances amounted to a serious amendment of the terms and conditions of employment and one which was sufficiently serious to go to the root of the contract and to amount to a fundamental breach."
"6.8 The Tribunal misdirected itself in that it ignored the significance of admissions in evidence from each Respondent [Mr Willis and Mrs Turnbull] that he or she would have worked on the 5 day rota and that his or her real grievance was the manner of its implementation which could have been cured by grievance procedures."
"It is further contended that the employees' real grievance did not amount to a fundamental breach of the contracts of employment."
"Q Prepared to if more notice.
"Q Were there other reasons you wanted to leave.
"When he [Mr Walton] said he was taking me off the 4 day rota he said I should have put it in writing I wanted the Sunday off. He'd put me down to work. I said he should have given me notice he was taking me off the 4 day rota.
"I told him the problem that had gone on. He said I should go through a grievance procedure. If I put it in writing to him he would make sure it got into the right hands. I asked him if I went through the grievance procedure would I have to go down and work the 5 day rota. He said "Yes". I asked him how long the grievance procedure took. He said anything up to a month. I just left the office."
"I believed the rota could only be changed by mutual agreement. I am not aware of any agreement which gives the company the right to change my terms of employment without consulting the union or me."
"... that the transference from one rota to another under these circumstances amounted to a serious amendment of the terms and conditions of employment..."