First you procrastinate on the task because it is not a big enough deal to get done urgently. Then you procrastinate on the task because it has become such a big deal that doing it is overwhelming. You would think that this implies a middle point where it is just big enough of a deal to get done easily, however the inherent perversity of the universe's causal geometry prevents this
I know this isn’t really a linguistics blog anymore, but what do you call the “funny bone” (nerve by your elbow that tingles when you bump it) in Czech?