dev "no no no, you're overengineering it. You just need one class for that"
Me "but ... Those are different object that share a common interface. The internal logic is not the same, only their output is. You know ... That's the purpose of interfaces"
Him "no no, as i said, you don't need that. Listen, you can put ALL the fields and methods in a single class and then you can use a switch with different cases .."