For another example, look to the Swim skill:Quote:You can't take 10 on a Swim check in stormy water, even if you aren't otherwise being threatened or distracted.Skill Mastery won't allow you to take 10 while swimming in stormy water because danger/distraction isn't the limiting factor.
It says "even if you aren't otherwise being threatened or distracted." So the storm is being threatening and distracting, even if other things aren't. Your argument is even weaker here.
What it comes down to is that you are trying to use very specific reading in order to limit an ability of the weakest class in the game. Why would you want to do that? Wouldn't it be cool if Rogues could use a magic item more reliably than any other class in the game? Wouldn't it be cool if Rogues could calmly swim through a tempest while others struggle? (Other than classes that steal their talents and can do the same, of course.)
But hey, it's not realistic that a 10th level Rogue can be that good at skills. Leave the fantastic stuff for the guys that can fly and conjure horrors from thin air. Rogues should know their place.