Back in the Olden Days, under the WEG regime, there was a rule that said if a player wanted to raise a skill, they had to either have used it during the game or spent some down time working on it and studying it. Now of course there's no such rule in the FFG engine - but I still find myself with the old mindset of "Why did this skill get better?"
Anyone else do this? Or is your skill buying a free-for-all? "Sweet! I have enough points to raise my Underwater Yak Shaving skill" regardless if you were nowhere near yaks, a shaver or were underwater at any time.