Sometimes, bad things happen. Like sometimes, you have to pay additional property taxes, or your dog eats through the kennel, or a rat eats the rubber tubing containing antifreeze in the engine of your husband's new truck. Some things are foreseeable, and some aren't.
But sometimes, good things happen, too. Sometimes cars which shouldn't make it through the summer are still drivable in the fall, and houses that can't afford to maintain exterminator services are still roach free despite all odds, and somehow, by the grace of God, the bills get paid.
Still, a rat in the engine? That's a new one for me.