When my son was little he would mess with my poser scenes. At first I could just turn off the monitor and things were safe. Then he learned how to turn that on so I put on a simple screen saver with a password. I know screen savers take up memory and slows things down, but not as much as a 3 year old messing with things. 

The prescribed punishment for an intentionally canceled render when the offender has their own computer is you get to use their computer to re-do the render (you do have queue manager right?)

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Available on Amazon for the Kindle E-Reader Monster of the North and The Shimmering Mage

Today I break my own personal record for the number of days for being alive.
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I use Poser 13 and win 10