Is this Christmas Party Invitation Rude?

Sorry to see that it’s been held. What the OP did was almost what I was going to suggest - attend, not pay but carry a conspicuous packed lunch and drink with you. Every once in while grab something from the lunchbox while talking to other people, why even offer them some.

[QUOTE=Northern Thalia]
BTW, it’s a red and white formal wear party.
[/QUOTE]

Went from rude, weird, and tacky to unbelievably rude, weird and tacky.

edited to ask: How many people were wearing red and white?