There are more humane ways to deal with animal infestation.

Here is a "literal quote" from Poulin's

Control:

Once house mice take up residence indoors, virtually any techniques used to control house mice are effective, including baited and unbaited snap-traps, windup multi-catch mouse traps, glueboards, and anticoagulant rodenticides. Their inquisitive nature makes them easy to trap. Often times, a rodent infestation is underestimated, ensure to use a sufficient amount of devices for the job.

Another quote from Poulin's:

Poulin's Gopher Doom is a made in Manitoba Product used to control Ground Squirrels, meadow Voles, House Mice, Norway or Roof Rate, Moles and Pocket Gophers. Poulin's Gopher Doom is a wheat-based product containing powerful attractants irresistible to rodents.

SIMPLE TO USE

• Ready to use – no mixing required.

• Easy application – apply product deep into rodent burrows by using a large, long handle serving spoon.

• Does not require protective eyewear or dust mask as with strychnine.

SAFE TO USE

• Readily available antidote: vitamin K, unlike competitor products such as strychnine or zinc phosphide.

• No secondary poisoning as with strychnine

POWERFUL AND EFFECTIVE

• Long field life for season-long control.

• Weather-resistant formulation with added bait attractant for best results.

• Flexible application – for use on rangelands, crop and non-crop areas such as golf courses, lawns and gardens.

Third quote:

Control:

Wasp Spray

If you have a visible hanging nest then you can use a pressurized wasp spray or foam. Make sure this treatment is performed only at night or when it is almost dark. Make sure you wear proper safety equipment. They are not likely to exit the nest, but it is best to be prepared. You want to saturate the interior of the nest first, then, once you have done this follow up by saturating the entire exterior of the nest.  Leave the nest for approximately 20 minutes before removing the nest. Make sure that before you remove the nest that there isn’t any further activity.  When removing, take the same precautions as mentioned earlier.  Be sure to remove the entire nest, including any pieces that fall to the ground during removal.