i have not. i am sure there have been many times that Mistress has expressed Her disapproval of something in public, but never disciplined....yet.
**Update-Mistress has reminded me of different times at O/our business when She would slap my face or pinch my nipples. This usually happened in front of O/our employees(who were kind of in on it). She also has verbally disciplined me in public at times also. As far as "in a play setting", not yet. W/we have not found folks that W/we feel comfortable with to play with at this time.