I often talk with other actors about that time when you've just finished a job because I think you do take on the characteristics of some of the characters you play. Sometimes it can be a great thing and sometimes it's a bit haunting because you're not quite sure how to leave it on set. My dad talks about it as being 'de-personalised.'
Actually the year anniversary of what you just heard my son Grahame and I are going to be in a play together and I'm acting for the first time in front of an audience that doesn't consist of a high school drama class.