The sorting hat didn’t listen to Harry, and yelled for everyone to hear, “Slytherin!”.

Seeing Harry’s distress, Ron Weasley’s eyes narrowed in determination. Minutes later, as Ron’s name was called by Minerva McGonagall, and as the sorting hat was lowered onto his head, all of the Hogwarts residents knew without a doubt what the sorting hat was going to say.

Imagine their surprise when the sorting hat instead said with resignation in his tone “Slytherin”