would prevent me from taking on a spur-of-the-moment challenge outside my particular development area that might actually lead to some self-improvement This so

would prevent me from taking on a spur-of-the-moment challenge outside my particular development area that might actually lead to some self-improvement This sort of thing is why I got a chuckle out of the claim that there would be "enough interesting challenges in [OP's] job." No employer can offer me enough interesting work that I won't find something unrelated I'd like to play with in my spare time, and I'm probably not alone in that.