I'm impressed that they took it so easy on the robber. They could have dumped him hard several times. The PC thing would be to say that they should have let him go and not intervene, but the cops can't be everywhere, and I respect their interest in personal responsibility.
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"In case you ever wondered what it's like to be knocked out, it's like waking up from a nightmare only to discover it wasn't a dream." -Forrest Griffin