This one is actually a bit scary. I'm not the kind of person who tends to accumulate true enemies, but there are certainly people out there who could relate some unpleasant memories.

Stolen from Joyce:

If you read this, even if we don't speak often, please post a comment with a memory of you and me. It can be either good or bad. I promise not to come after you with a spatula, either way. When you're finished, post this little paragraph on your blog and be surprised (or mortified) about what people remember about you.

I'm not going to put any explicit restrictions on what people post, but please be somewhat considerate of the other readers. :)