The age old question is answered: I was digging in my old Napa Valley forum and I found an old post by Spock the thief from February 2007. Jeremy from EA posted the actual calculations used for the stealing formula in a Five on Friday. Spock broke it down, I promised to add it to the FAQ and... I never did. I found it again now and just added it in its own section: UO Thief | 8.1: How is stealing calculated? I think I made sense of it before but my head hurt. The green text is a direct quote from Jeremy. The tables were made by Spock. I also added a section on how to make an explosion trapped crate since someone recently PM'd me about it: UO Thief | 7.15: How do I create an explosion trapped crate?