A cleaning business my wife runs has recently suffered from a bout of poaching whereby a cleaner pinched 2 of her clients. This really irks me and so I decided to pose as a potential customer and asked the cleaner if she had any availability for me as a client and could she provide a reference. She then gave me the contact details of one of the clients she had poached from my wife's business! I had a very nice chat with her and she told me how great the cleaner was and how she was glad not to be paying the agency fee any more. My wife then sent the the client an invoice for her placement fee as detailed on her contract. Was my deception to catch a thief fair game or have I compromised my wife's position in any way? I am a named partner in the business if that makes any difference.