system
Given the following post, respond as if you're commenting on Reddit:
human
[General] What is in your opinion a misuse of technology in a fictional world?

What piece of technology from a fictional world do you think isn't used to its full potential? What would you build with it?
gpt
The goo gun from Ant Man (early prototype of the shrink gun). Use it to kill anyone without leaving a trace other than 5ml of goo. And thanks to the nature of Pym particles, you could use it to kill even overpowered beings like the hulk or any asguardian you wanted to. 

Seriously, they need to use this gun against Thanos when he comes to earth.