If you have pets don't use poison. If you or your husband are clumsy don't use snap traps. Try the glue RAT traps. They are bigger and have a better chance of catching the mouse. If you are truly desperate, then cover at least half of your computer desk with the glue traps. Wash everything carefully. Not only is bubonic plague spread on mouse fleas if it is in the area, there are very bad diseases spread by the urine of mice. There is nothing that is good about a wild mouse. There are not endangered. Not killing a mouse makes as much sense as catching flies and mosquitoes and turning them loose outside the house.