A blonde got home and told her husband, "Honey, I've got good news and bad news."
"Oh, oh," said her husband. "Let's hear the bad news first."
"The bad news is: I lost the gas cap to the car. I put it on the roof of the car, but then, after I filled up and drove away, it wasn't there. I searched everywhere but couldn't find it."
"That is bad news," said her husband. "So what's the good news?"
She replied, "Oh, the good news is: I found another gas cap that fits perfectly and is even better: it locks!"