Doujinshi. It looks like a pedobear character knocks out a girl via neck chop. He then carries the loli away and looks at her panties. He probably rapes her, but do we really want to know?
A bunch of sexy jungle girls are knocked out. In the first part, a jungle girl is hit on the head. In the final panel, a jungle girl is given a sleeper hold!
From a Phantom Lady story called "The Subway Slayer". The splash page has Phantom Lady holding a woman unconscious. Later in the story, PL trips and falls onto a moving train. She is seemingly rendered unconscious, but she's really faking it. Clever girl.
A 2009 issue. Not sure what happens, but it looks like an alternate version of She-Hulk is drugged after being scratched with a fingernail. She wakes up chained.
Contributed by Western Civilization board..
The Living Vampire. The vampire bites a girl unconscious (or dead, who knows). Included a page where a girl is bitten (but not KO'd). I liked her outfit, reminded me of Black Canary.
A great piece of art by Lost One Zero. Storm from X-Men is being chloroformed by her evil "double" (could it be Mystique?).
Contributed by LoZ (Lost One Zero).
TIme for a little change of pace. Thought some people might be interested in seeing Sonic getting knocked out, so I am posting this scene. He's bound unconscious as well. For fans of guys in distress.