If there is a serious breach of your contract, this may result in your dismissal, even for a first offence, as it will be considered as gross misconduct.
Os bydd achos difrifol o dorri eich contract, gallai hyn arwain at eich diswyddo, hyd yn oed am drosedd gyntaf, oherwydd bydd yn cael ei hystyried yn gamymddwyn difrifol.