I have Macbook Pro 2011 15' (2 GHz Intel Core i7).Generally speaking, my computer sees average stay-at-home mom style use. I have never created a pin code to lock my computer. I have a MacBook Pro purchased new from Best Buy in 2012 and am running the latest version of OS X Maverick on it.Currently the MBP user is using a local account because only a local account works when off network.
The iMac's are domain joined and able to access network shares and printers no problem.