No NOT appropriate for a spa open day party at all on any level.
Where in her advertising does it say you are also an adult shop??
Does she not get the damage this could do to her spa?
If it's an open day, then she will have people from all walks of life from young to old and there is no way this is ok for this kind of open day.
I know if I walked in and saw this sort of thing, I would run and never return, it would not give off a nice vibe at all about what the business is about.
I would be scared that if I came in for a pedi/mani that I wold be hassled to purchase/look at adult stuff and if I wanted to do this, that is what an adult store is for, not a spa salon.
You really need to get through to the owner that this is not the place to be doing this, I agree, leave it to a private home function.
I have been to these kind of private parties and they are fun but it's not a public business thing by any means.
What would be the laws on this in your area?
If she will not change her mind, I would NOT be there on the day as I would not wish to let ANYBODY think I was part of it and then I would explain to ALL MY clients that I objected to it and why.
Good luck, I think your boss is crazy
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