It's not just about the OH. Even if you are single and have nothing to hide, if you end up using your work number to call WGs, there is a possibility of that number being exposed in the future by an irate WG.
A prospective customer then googling your mobile number... as well as finding it in the plumbing, or lawyer section, etc. will also see alink to an escort forum, about being a "timewaster", or asking for BB, etc. Would you want this happening to you?????