VIDEOS:
Yu and Yosuke get arrested
Before going to rescue Yukiko, Yosuke shows off a katana and machete to Yu by swinging them around in public (and acting like a psychopath). Despite insisting that the weapons are fake, he makes the mistake of doing this in front of a police officer, leading to both him and Yu getting arrested.
Example of:
Remonstrating with a Gun
Example of:
Fake Ultimate Mook