I'm thinking of leading the horse into the grocery store.
What do you mean when you say that?
I told you I'm thinking of doing something interesting
You shouldn't bring a large animal into the store. It's disruptive to customers and store employees. It might make people's jobs harder if they have to clean up after the animal.
They shouldn't complain.
Why can't they complain about it? Bringing farm animals in to a store is not something that is acceptable. The animal should just wait outside.