Been on 7 different surfaces, such as:
carpet, concrete, wood, vinyl, grass, dirt, gravel, wood chips, newspaper, etc.
Played with 7 different types of objects, such as:
big balls, small balls, soft fabric toys, fuzzy balls, squeaky toys, metal items, wooden items, paper / cardboard items, milk/soda jugs, etc.
Been in 7 different locations, including:
front yard, backyard, basement, kitchen, car, garage, laundry room, bathroom, crate, kennel, etc.