I have been told by trusted 3rd parties accounts of a few that seemed very confused/disoriented. But upon review and reflection of these "parts" and the specifics of the accounts. These are not "true/full" parts (I really dislike the word alter). These instances can be more attributed to PTSD symptoms. Flashback states that are fragmented enough to hear an outsider. Then get very confused by sudden awareness and conflicting timelines. I guess like waking a sleep walker?.. but, they have been few and generally disappeared fairly quickly once "woken"...most not to return...and this, to my knowledge has only happened two or three times I can recall, but I will have to check my reports for definitive number.