If a stat is at 10 and you pick up the "You're SPECIAL" book (+1 to any SPECIAL stat), you normally won't be able to pick that stat. You will be forced to pick a stat that is at 9 or lower. So you normally can't use the book to go from 10 to 11 in a stat. However I tested how the book works with stats that are affected by a debuff because this would reportedly enable you to get the stat bonus even if the base stat is 10. Here's what I did and what happened:
- When I just took the book with 10 base intelligence and no int modifiers I could not pick Intelligence as the stat to increase.
- If I had 10 in intelligence base, and then drank some Whiskey to temporarely reduce my int to 9 and then took the book I was able to pick intelligence as my stat to increase. When the duration of the Whiskey ended my total base int was at 11.
So my question then is what ways do we have to temporarely decrease each stat by at least 1 point in order for this to work with all stats? I would like to compile a list that at least covers each SEPCIAL. (No console commands)
Edit: Changed question to better reflect what I'm actually wondering about. Edit 2: Moved list to answer. Edit 3: Updated explanation of how the "You're SPECIAL" book works to be more precise.