Sasuke: What's he doing with mum's hat?
Itachi: A revolution Sasuke. Revolution.
Itachi has deigned it time to attend Orochimaru's funeral. What better way to do it than with Mikoto's hat that she wears every Sunday to intimidate the elders?
Suggested by the wonderful people in the Itasaku discord.
Sasuke:... Wait hold up. Orochimaru's not dead.
Itachi: Yet. Not dead yet.