In an opinion piece, Wayne State Law Professor Peter J. Henning chronicles the Hewlett-Packard scandal, noting that lawyering by email can be dangerous because email often contains random thoughts, visceral reactions and quick analysis - "none of those are hallmarks of thoughtful legal advice." He believes that this was one of the key problems in the Hewlett Packard case as Larry Sonsini, HP's outside legal counsel, dispensed his legal advice over email.