"Human! Explain your illegal use of laser weaponry!"
"Laser weaponry? That's a concert venue. The lasers are entirely decorative and harmless."
"Your 'harmless' laser shot down one of our ships!"
"Okay, leaving the question of why one of your ships was flying where it had no right to be, how was it supposedly shot down? Those lasers are pretty, but they're not powerful enough to cause even a sunburn."
"That was what we want to know! The pilot was clearly sniped through his cockpit glass. Recordings clearly show a burst of anomalous neural activity and muscle seizures when your lasers swept over the ship..."
"Anomalous neural... did your pilot have an epileptic seizure from seeing lots of flashing lights?"