It's the easiest way to kill momentum. The best excuse for your reader to drop the book.
And it's so super easy to get there! On my seventh read-through of my MS, about seventy pages in, I jumped out of my chair and bolted from the office. Why? Because I'd been sleep-reading/revising for about six pages. Holy hot dog, Batman! I'd bored MYSELF. If I couldn't read my pride and joy without nodding off, how could I hold someone else's attention?
Do you find your attention span getting smaller every day? Struggling to get interested in a book without immediate action? Falling asl-zzzzzzzzzzzzzzzzzz.
Hehe. Just kidding. Is it a death sentence when your own story bores you?
In the spirit of NOT boring you, this is a shorty post. Thanks for hangin' with the Cheetah!