Spotted garden slug ( also known as Tiger slug, giant garden slug, great Gray slug, and the greenhouse slug).

Description:

This is an invasive species to North America . Dark brown, black, and tan in color. About 3 inches long when fully outstretched. Seem to retract its eyes underneath itself whenever poked or irritated. Very skittish and slow-moving.

Notes:

I have found these little guys before typically inside my house around the sink and trashcan area. (Little guy was released and not killed).