"Negative things, and they were all deliberate and I'm not going to say who they were but I know who they were and it was in the business, and that's not a good sign"

This quote by Andrew Lloyd Webber is most likely referring to a negative experience he had in business world. He is not going to call names, however he knows who was responsible for the unfavorable things that happened. This implies that the person or people responsible were deliberately attempting to cause harm, which is not a great indication. It could suggest that the individual or individuals responsible are not reliable, or that they are willing to go to extreme lengths to get what they want. It might likewise mean that the business environment is not favorable to success, as it is filled with people who want to do whatever it takes to get ahead. Whatever the case, it is clear that Andrew Lloyd Webber is not pleased with the circumstance, and it is not a good sign for business.