So long story short I basically work in a card shop. I'm just a sales assistant and I told my manager about how the sales assistant manger lets his friends into the stock room and gets them to help cash up at the end of the day. He's also on his phone constantly at the till but I left that out as it just sounded petty and obviously doesn't affect my job performance.Obviously if some money went missing, his friends could easy take it or something out the stock room, I could get into serious trouble and it wouldn't look good if applying for another job. I told my manager all this and she was obviously pleased I told her, she also said she'd noticed some money had gone missing.... I just guess I feel bad, he's on his last warning so will probably be fired. Would anyone/ has anyone told on a colleague?