Debt Collection, Bin Laden Style

I'm not sure this is lawful under 11 U.S.C. Section 362(a)(6):

He employed his acrobatic skills to shake money from his debtors. "People were forever owing him money, so he would offer them rides," recalled Rupert Armitage. Once in the air, "he'd say, 'Look, you owe me two hundred thousand dollars. I want you to write out a check now.'" If they declined, he would threaten to take the plane's controls and roll it upside down. If they stil refused, "he'd start doing it...and then, 'Okay, okay, I'll sign it!

"He" is Salem Bin Laden, oldest brother of Osama Bin Laden. Salem was an electic mix of shrewd businessman, lousy rock musician, frenetic party boy and pretty good pilot (who died when he ran his plane into a power line in Texas, aged about 43). Armitage was a sometimes schoolmate and guitar-playing buddy whom Salem put in charge of a Bin Laden family communications equipment company. From Steve Coll, The Bin Ladens 173 (2008).