I must be one of the few people who actually do know what they want when they go into the store. I want juice, eggs, butter, milk and cheese. Or I need cat food

I must be one of the few people who actually do know what they want when they go into the store. I want juice, eggs, butter, milk and cheese. Or I need cat food. That’s what I get. I often have wander about the store, but it is extremely rare that I get something other than what I have chosen to get.