I'm a graphologist and a clinician; I tend to get to know a little bit about people by peering at their handwriting. Looking at Barbara Streisand's signature, we do find the theme of duality. Barbra's first name (representing the private self) is scripted in one style of writing whereas her last name (representing her professional self) is scripted in a completely different style of writing.
Note how she loyally reproduces the copybook script she learned in school and, in so doing, shows us that, first and foremost, she values fitting in. Such writers, amiable and good-natured, easily lapse into people-pleasing. And they often harbor secret self-negating habits designed to help them keep insecurities at bay.
In the wake of reports that Toronto's mayor has been distracted at the wheel, only one question remains: why won't Rob Ford use a driver? One look at his signature provides the only answer that hasn't been put forward, an answer provided not by his aides who are rebuffed when they offer to take the wheel, and not by puzzled journalists who conjecture about the issue.