a strict security guard blows his whistle as a signal while making a thumbs down gesture. a disciplinarian showing disapproval

security guard staff guardian protector professional personnel man male guy person 40s middle aged filipino southeast asian indonesian malaysian vietnamese asia thai chinese jacket black cap white background isolated vigilant watchful alert diligent trained observant cautious rigid whistle whistleblower displeased restrict ban disapprove reject deny dissent oppose refuse decline disagree negate condemn invalidate disallow block discourage strict blows signal making thumbs gesture disciplinarian showing disapproval gesture disapproval