Mouseferatu
Hero
"Whenever" means "at any or every time." Pretty clear. Sometimes we overthink ourselves into ambiguity.
Guys, it's really only ambiguous if you ignore this. It says "whenever." It specifically says "whenever." Whatever else is phrased poorly, "whenever" has a very clear meaning in the English language when used in a context like this. "Whenever I'm outside in the rain, I get wet." "Whenever I see Morena Baccarin on TV, I feel funny."
It doesn't mean "sometimes." It doesn't mean "on occasion." It doesn't mean "under these other circumstances." It means any and every time.
Don't like it? By all means, house rule it. I very well might. But I'm sorry; while the game does have some unclear wording, this really isn't one of those instances.