you can argue your perceptions til the cows come home but at the end of the day, you're working for someone else and their rules apply. If I'm responsible for my crew and set rules for them and they dont' follow them I will warn, suspend then fire them. I've had to in the past, deal with people that have a problem with how I managed my stores, but in the end, it didn't work out because I was given the responsibility as manager and not the employee.

The way you state what you just did implies the problem is with joking and from your descriptions, I highly doubt that it is. Did the manager ever tell you "never joke, make light of things, kid around...etc"? Calling out certain behaviors is far from saying all joking is not allowed. Stop, take a step back and actually analyze what it is that people, and your manager actually have a problem with.

It seems in most posts you've had a problem with behavior you generalize things and make it about something that is never the case. Your interpretations of being reprimanded for behavior is skewed. Your view is that running around the place, leaving your station and yelling things about murder and cannibalism is joking around, as if to say it's mild humor and it's not. Even if it would be in some contexts, the manager and people that have a problem with it have made it clear that it's not. Separate the entirety of being able to joke around from the level of intensity of your behavior and you'll see it's not about joking itself it's about that.

Ask yourself also, why you took this job. Stop and think about whether you took it to try and find friends, socialize and have fun or if you took it because you need to make money for living. If it's the former, I'd say you're in the wrong mindset and if it's the latter, forget socializing at work and just do whatever job it is that you're getting paid for every minute you're there.