4 ms·If this is a suicidal flash, the presence of another person might be enough to prevent that from appearing.by shin_lao 12y agoIf this is a suicidal flash, the presence of another person might be enough to prevent that from appearing.id 12y agoSuicide is very rarely impulsive. Especially murder-suicide.shin_lao 12y agoPlease document yourself: http://www.hsph.harvard.edu/means-matter/means-matter/impulsivity/ http://www.hsph.harvard.edu/means-matter/means-matter/impuls...