Almost all institutions own a lot more art than they can ever show, much of it revealing for its timeliness, genius, or sheer weirdness.
A prison taint was on everything there. The imprisoned air, the imprisoned light, the imprisoned damps, the imprisoned men, were all deteriorated by confinement. As the captive men were faded and haggard, so the iron was rusty, the stone was slimy, the wood was rotten, the air was faint, the light was dim. Like a well, like a vault, like a tomb, the prison had no knowledge of the brightness outside; and would have kept its polluted atmosphere intact, in one of the spice islands of the Indian Ocean.
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.'