How many mice can you catch on a snap trap?

We use snap traps in pairs.  We normally set them in cardboard boxes.  The boxes are inviting to rodents and lead to more trapped rodents.  They also contain the trapped rodents to protect sensitive eyes from seeing the trapped rodents.  This post contains images of trapped rodents if you are sensitive to those images.  This box trap caught three mice.  Two mice were trapped in the same snap trap.  The third mouse was trapped on the adjacent trap.

2 mice on one snap trap