No weapons! No tricks! Just you and me! Byron Williams! The heavyweight champion of the world!
— Byron Williams, Mars Attacks!
Thief: I thought that's what martial artists did. You forsake melee weapons and constantly strive to transform your own body into the perfect weapon. This process often involves a training regime meant to unlock nigh mystical powers within the practioner.
Black Belt: Well now that's certainly an interesting approach. Back at my dojo, they just taught us to beat our opponents senseless.
I'M-A HIT IT WITH MY HAND.
— Ninten, Loids are not Christmas
'''These are the famous Xiaolin temple monks. They pursue spiritual peace though mastery of bare fisted murder.
— Madam Wu, The Simpsons, "Goo Goo Gai Pan"
[Rick Flag] don't need no weapons.
— Captain Boomerang, Task Force X
The city's laws may not affect all characters equally. A monk isn't hampered at all by a law about peace-bonding weapons.