A PW should be a representation of what a "real" world should be like- and if you can't open a lock or disarm a trap, or don't know someone who can- you should be just as shit out of luck as the rogue who really wants to do a little solo adventuring, but gets dropped by a freaking bat. Or... anything that looks at them hard, really. Sad truth is that the class absolutely requires you to have a group just to survive. So, the average rogue is terribly broken hearted that you can't get into that room... at least you can come out with your skin.
And Sandro, sometimes you're just tempermental.... and moody. Do you need some chocolate?
And Sandro, sometimes you're just tempermental.... and moody. Do you need some chocolate?

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