This dream may reflect feelings of embarrassment and inadequacy in your waking life. The setting of your old job suggests that these feelings may be related to your career or past experiences. The fact that you are in the rest room, a private and intimate space, suggests that these feelings may be deeply personal and hidden from others. The chair being both a seat and a toilet may symbolize a sense of discomfort or unease in your current position or role. The passing of diarrhoea and inability to clean yourself up may represent a sense of being overwhelmed or unable to handle a difficult situation. The presence of someone sitting next to you may symbolize a feeling of being judged or watched by others. Walking to the actual toilet room with your trousers down and people seeing you may represent a fear of being exposed or vulnerable in front of others. The diarrhoea stains on your trousers and boxers may symbolize feelings of shame or embarrassment. The woman in the toilet cubicle and the 2 pence coins on the floor may represent hidden emotions or thoughts that need to be addressed and processed. Overall, this dream may be a reflection of your insecurities and fears in your waking life, and may suggest the need to confront and overcome these feelings in order to move forward.