Now, mice have difficulty climbing any surface that is primarily smooth. Glass doesn’t allow mice to get any sort of grip, and a smoothly painted wall will not offer much support for a mouse trying to climb it. Unfortunately, even if mice cannot climb up these surfaces directly, if there is anything on it that they can climb, they will certainly make use of it.

Wires and cables, for example, are extremely easy for mice to climb. Their claws can grip onto wires very tightly and the mouse will use its tail for balance. As long as they can grip onto a cable or wire in this way, they will be able to scale a wall of virtually any height.