I've had a look at the chart. In the following category
what would be included?
Eid?
Celebrating the coming of the salmon?
Diwali?
What about attending a Sikh wedding?
Ayyám-i-Há? They might invite you around for a cake or something without your knowing why; would that count?
Pavarana?
So often, perhaps trying to ingratiate themselves, there are overtures made to enjoy samosas or light candles which is ok I guess if the lights go out but all sorts of heathen believe in "magic" candles. What exactly are you suggesting?
Concerned.