If you have a new neighbor living under your porch or hanging out in your garden, it's probably an unwanted groundhog or some other type of pest.
You can spend money on a live animal trap, hope you catch him. Then carry him out and dispose of him at the lake, or whatever way you find fit.
You can also spend money on expensive repellents that need to be sprayed monthly....Or you can try this recipe for your own homemade groundhog repellent from The Gardner's Rake.
Mix 1 tablespoon of hot sauce with one gallon of water. Spray around the perimeter of the area in which you want to keep away the groundhogs. You can also spray this mixture on your garden plants, just be sure to wash them well when picked.