It almost always drives me crazy when I see kitchen knobs in the very bottom corner of cabinetry. I've never really known why this is but I have very strong feelings about it. And I see it done all the time.
There are exceptions to this rule of course. Sometimes they do not bother me at all and one day I will come across some crazy corner knobs that I love. But, I say move them away from the corner! Even an inch or two will change your life.
Ahhh much better.