yeah its a very, very weird response to someone whos annoying you. i understand making lighthearted jokes to close friends where there is a /mutual understanding/ of the joke like "hey [friend] meet me behind the dairy queen tonight for an ass kicking"...

but to explicitly talk about wanting to shoot someone you dislike? and laughing about how they would be easy to kill? incredibly deranged and abnormal behavior. it isnt even remotely funny.