Last year my H wanted to bring his old slapper to our works xmas dinner. Just the thought of having to watch them bill and coo all over each other made me feel dreadful. No way i could eat in those circumstances.
On that occasion, someone else told H it would be 'inappropriate' but in much baser language i believe.
I don't know what he's got planned 4 this year, but i think i will choose not to attend in preference to being made to feel like the travelling circus, surrounded by interested work colleagues wondering when the soup will start flying.