Ignore birthdays in "Deceased" user group

[wohali]

We've had a bit of a kerfuffle on our board recently. The "Today's Birthdays" block showed the birthday of one of our deceased (and very much revered) community members. Some people though it was a fitting tribute; others said it was like a ghost was haunting us (in a bad way).

Would it be possible to have the birthday feed ignore users in a particular user group (e.g., a "Deceased" user group)?

I know this is a bit of an odd request...but it seems like something that might have broader appeal to IPS clients.