Courtney Gains -- who starred as psychotic teenage killer Malachai in "Children of the Corn" -- is allegedly wreaking havoc in his real life too ... his ex-girlfriend obtained a restraining order against the guy claiming he's threatening her life.He may be nuts, she may be a drama queen. All I know is, he could scare the life right out of me. For everyone's sake, I hope it's just melodrama.
Kelley Marie Pospisil -- who says she dated Gains for 2 years --filed court documents begging the judge to keep the 46-year-old actor at least 100 yards away from her at all times.
In the docs ... Kelley says Gains has been sending her threatening text messages since they broke up ... writing things like "Don't think I won't go find your ass. Just keep it up b**ch."
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