This is not your ADHD, this is some sort of antisocial behaviour, maybe driven on by one or more (maybe undiagnosed) personality disorders. I’d recommend at least getting checked by a professional in the field (psychiatrist perhaps, depending on your country) so you can find out what is driving this behaviour, and then you can make a decision on whether you want to address it or not. Knowledge is power and knowing more about yourself is helpful, regardless whether you decide to address it or not.