Depends how far in you are on your journey. If you are at the beginning <12 weeks, don’t go. Cancel. If you are humming along, bring a veggie tray and when portions are served or you buffet, put tiny bits on. Avoid the sauces if possible or scrap off (my MIL covers things in sauce and still thinks I can eat it). Then nibble politely but don’t eat it all. If it’s only a tiny bit off protocol, I have found this doesn’t kick me out of ketosis (I pee on the sticks every day). It will drop me from dark pink to light pink but usually it’s not world ending.