In addition to monitoring their own behavior, employees and managers should be trained and encouraged to watch for warning signs in others.

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Rather, Keys tweeted a copy of a "final written warning" he said he received from Reuters in October, which admonished him for unprofessional behavior after he mocked a Google executive from a fake Twitter account.

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The warning first came from an imam in Toronto, who in turn was tipped off by suspicious behavior on the part of one of the suspect.

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Side effect information takes up 41 seconds of the advertisement, with about 20 seconds devoted to a warning that patients taking Chantix should stop taking it if they experience agitation, suicidal thoughts or suicidal behavior.

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