Principal Delmas!!
This is what the Lyoko warriors should do when Sissi bothers them.
Final Mix
Sissi put her arm around Ulrich. He reached for phone and dialed Principal Delmas' number. "Hello, Mr. Delmas, Sissi is here at the party. Yumi and I were dancing but she pulled Yumi away and started dancing with me. Yes, it's very irritating." Five minutes later, Principal Delmas came and pulled Sissi away. She screamed and tried to pull out. Yumi and Ulrich continued dancing until Jeremie told them there was a Xana attack.
Isn't it correct?