So..
Next time, if there is one, you bake the cake, bring it along, and at the appropriate time you loudly announce “It’s our buddy Joe Witness’s birthday. I baked this cake for us so we could celebrate his birthday for him since I know that his faith forbids him to celebrate his birthday... “
And then cut the cake and pass it around. Offer him a piece after everyone else has theirs ‘in case he wants to join the celebration’...
He’s moved to another state quite far from here. And divorced the 3rd (or 4th, not sure which marriage it was) wife.
The thread just brought back the memory - I know the cake was wonderful. :-)