People under the shoes

You are going to meet people in your life that if you treat them with respect they are going to take you for granted but if you disrespect  them and treat them like trash they are going to respect you. I know its strange but this happens actually . I don't know what to name these type of people? I mean its easy you can judge them within a month or less.There behavior will be changing as you give them more respect they are going to be bossy on you and if you treat them like crap they are going to treat you like a boss.Strange huh?