I used to look forward to the office SS as it was the only present I'd get - and to me, a battered old unwanted Body Shop gift basket dumped on me because they didn't like me that much was a result, as it meant I got some nice smelling toiletries, even if they were usually covered in a layer of dust. I couldn't really afford to join in, but I always did. I knew that some of them were actually meant maliciously, but I always smiled and looked on the bright side whilst telling myself But you got a present.
Then one year, in a place where I really didn't think I was held in that much contempt, I sat through people opening £30-50 presents (£10 budget, easily manageable for everybody else there, as they were on a minimum of 3x my salary), to find that whoever had been unlucky enough to draw my name had decided they wouldn't bother.
Even my boss, who had form for being a bit of a dick to me, was really angry about it. But there wasn't much I could do, other than slink off home and spend the next fortnight alone and skint until work reopened again. After that day, I never took part again, as there wasn't any clearer way to say 'everybody despises you' than that. I'd rather go without than spend a tenner to have everybody see me be humiliated like that, as you can't style out 'Well, when I found out it was you, I couldn't be arsed'.
Don't be a cunt to people.