A mouse stole my elevator button. How can I get it back?

After defeating the cook boss ghost on the 2nd floor, a mouse stole the elevator button. I understand vaguely that I have to vacuum this mouse up somehow, however, they keep hiding in a mouse hole whenever I get near. How can I retrieve the elevator button to the next area from this persistent rodent?

Solution 1:

Use some of the cheese you find in the dining room to lure the mouse out of its hole.

Place the cheese in front of the hole. Move away from the cheese and the mouse hole so the mouse thinks it's safe. When the mouse comes out to nibble the cheese, flash it with your flashlight.