Because this is part of being a villain, after all.

This isn’t to say that Harley’s planning to go on a murderous rampage. In fact, she prefers non-lethal methods, but sometimes these things just happen. Basically, it’s like a relationship list that I could actually keep up with.

Harley would enjoy and not feel guilty about killing:
Lex

Harley will not kill because she likes them so goshdarn much:
Impulse
Momoko
Ari
Rumpleteazer
Mungojerrie
Simon
Agito (but not Akito! Try and figure how that one works.)
Bart
. . . and there are a couple more people who are almost but not quite on this list.

Harley will never ever kill even if she wanted to:
Batman
Robin

If you aren’t on any of these lists then she would, in fact, kill you with varying degrees of reluctance and guilt. Or maybe I forgot to add you.

(Also, for the record? This was supposed to be an essay about sex.)