If you pursue boxing, then, yes, I am going to be weary of you (at first), because you clearly enjoy violence. Or at least beating up other people. At least as compared to the average population

If you are an asshole to a computer, then you have created similarly biases in my expectations about your potential behavior toward humans.

Observations create expectations. Be an asshole in any context, and people will assume you can be an asshole in other contexts.

Simple solution: never be an asshole.