Mouse in My House

There is a mouse in my house. I work in a kind of basement (it's a Queenslander, so down with the stilts), and across from me, if I sit very still, sometimes, will appear a mouse. It's grey. I would like to smush that mouse. Aside from the mess involved, whenever I look at I think of it's little mousey claws crawling up my leg.But if I move even the slightest bit, it runs. What chance do I have of catching it? Which makes me wonder, if I ran into this mouse on a country road- a place where it could not run or hide- where it was just the two of us, could I catch it then? Or would the mouse be too quick? Or would we both be too evenly matched, and it would be competition to see who could run who to death? I'd probably win, but still, I'd like do that one day, have a sprint-off with a mouse.