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: Professional escapologists always check the double-lock mechanism to ensure the cuffs don't tighten during a performance.

: Never practice restraint escapes alone. Always have a "safety" person present with a key or bolt cutters in case of an emergency. AI responses may include mistakes. Learn more

: If applied too tightly or without "double-locking" (which prevents the cuffs from tightening further), they can cut off blood flow [2].

Restraints, specifically handcuffs, can cause permanent injury if not used with extreme caution.