I think the owners assume that no one has been a dick in the last 5 years, and hope it means no one will be a dick for the next 5 either. It seems like you’re getting close though so maybe take a different road so you avoid the temptation of stealing a cat since it seems unusually strong in you.
They’re mad at you because you made jokes of a serious issue that only exists because the US is a dumb pace where guns have more rights than kids. If it were anywhere else it would just be an edgy joke. In the US it’s like dressing up in an SS uniform to a Holocaust convention… A little too edgy…