The only thing I can think of is he had his pants at his ankles or something like that... Which is unlikley... I just can't come up with a feasible explanation...
I think he had a work in progress, if you KWIM. I doubt he was hidding from Ken, but he heard the door and didn't know who was coming in.
I did not realize the business was owned by a church member. If the church was informed of the misconduct of WAW & OM, then that is even more baffling why she has not been released of her job.
I agree with Allen, Ken. I think you should have a one on one with her boss and inform him of the many times OM has imposed on her during working hours. I'm trying to remember, but seems like she did get concerned when she thought you would tell boss or go to workplace.....there was something in past posts that I recall her worried about her job. I think it is a key point to hit.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!