Mouse continues tittering. It's set off - and escaped from - three traps, ignores four more and pays NO attention of any kind to the now-two fancy-pants ones. Sticky ones a complete loss - two untouched, the other with evidence of Houdini mouse.
Apart from the initial four traps and one fancy, I've invested in four more classic traps, one more fancy, a jar of peanut butter, block cheese and a bar of chocolate. Melt it on the cheese, was one piece of advice.
I'm COOKING for the mouse now??????