It's the last period of the day in the Xavier's institute, Professor Logan's combat, strategy and espionage class and today, he's teaching about how to know if it's a ninja ambush

Logan: He points to the chalkboard "NO! What part do you not understand? IF A NINJA MASTER CONFRONTS YOU HEAD ON, THAT MEANS THAT OTHER NINJAS ARE GOING TO ATTACK YOU FROM THE SIDES AND FROM BEHIND."

"A NINJA MASTER NEVER CONFRONTS YOU UNLESS HE HIMSELF IS THE?"

Meanwhile, the students are quite clueless