Help ,My shit zu eats every thing i left on floor

Question
My shit zu eats plastic, shoes, tissue pepper he eats everything I left on the floor. What do I do? Please tell me is it dangerous for him and how can I stop him.  

Answer
I don't know how old your dog is since you didn't state it so I don't know if this is a puppy who would normally chew on things or a dog with some deficiencies that needs a better diet and/or training.

Most dog, shih tzu's included, when they are puppies will chew on things left around the floor.
Of course it is dangerous for him to do this as they can get an obstruction in their bowels from things like this.

If this is a puppy then some training is needed and he should be crated when you are not home and not have the run of the house. Get him on some Science Diet Puppy Growth small bites and he will not have the need to eat bad things. He will want to chew if he is teething so get him some chew toys for dogs.

If this is an adult dog then he needs a better diet and some training to make him be more obedient for you.

Start picking things up while you are training him so he doesn't choke on something or get a blockage.