Hat-tip to circuit_four here: HuffPost: GOP Senators Refusing To Work Past 2PM, Invoking Obscure Rule.
One: Key Republican Senators apparently (a) don't care about doing their job, and (b) believe the Democratic Senators do, and therefore (c) are willing to enforce a work stoppage to make the Democrats do what they want. This does not reflect well on the Republicans. The first metaphor that comes to mind is if a police department decided to blockade the fire station in order to get their 'support' for changes to the city budget.
Two: How stupid are the Senate rules, anyway? You can't make Senators actually filibuster, you can't make Senators actually work more than two hours a day ... this is not how governance happens.
Politics is an important, valuable activity - but this ain't.