I've watched Neighbours for 20 odd years now and there have been many cringe moments!
In the run up to this scene, Susan has been telling her friend that working at the same place as her husband has meant their sex life has become non-existent, so with some encouragement from her friend to seize the moment and knowing her husband will be back in his office soon she decides to be spontaneous... Unfortunately for her, an elderly resident has misplaced her hat and starts retracing her steps to find it.