I've seen very few peers feel this way occassionally, and it's insane to me. If you can't find a way to get value from 30m with your manager, there's something obstinate about you, not wise.
I have even more than 30 minutes. When there's a need. Then I go to him, speak with him, share the problem or revelation I have, he advises or take an advice, we check on it later if needed and off we go. None of my colleagues values wasting their time (we've got a discussion about it already,) so if you'd like to show us you care, you'd reduce number of meetings greatly.
