Create ember-data record outside of store

I am very new to Emberjs.

I would like to create a temporary instance of a model (Customer) for use in my "customer.create" route. However I don't want it to be added to the store. Is there a way to do this?

Currently I am doing this:

model: function(){
    return {
        firstName:'', lastName:'', title: ''
    };
},

but I would like to use methods within the actual model.