[Yelena's eyebrows go up at the question and she shakes her head.]

Oh. No. I haven’t had much opportunity for that.

[Then she ponders a little.]

But I threatened Newton Geiszler with a snake cake on his birthday. That’s a little like celebrating.

[No, it’s not, really. But it’s as close as she’s gotten. She’s never celebrated her birthday because she doesn’t know when it is and none of the other widows knew when their birthdays were either. So it’s just not something that has come up a lot in her life. She knows birthdays usually involve cake, though, and is willing to encourage that.]