You should distance yourself from this set of people.
People who lie to you.
This set of people are very dangerous and can be regarded as the set of people that is degerous most.
Those set of people never tell you the truth. Try lie to lie and this can be dangerous if you continue walking with them or making friendship with them.
People who can lie to you will someday lie against you .
. People who disrespect you.
This set of people never regard you as something. They regard you as nothing and so they can respect you. They never acknowledged the value you hold in you and so always distance yourself from those sort also.
People who use you.
This set of people are also deadly. They use you to achieve their goals, their motive, their objectives which is not good. When you are used up by them, surely they will dumb you. You should also distance yourself from them.
People who put you down.
This set of people is also deadly because they always put you down. Instead of encouraging you, they always discourage you. Insteading of lifting you up, they always put you down and those set of people should be avoided.
Sadly some people are so hungry for love and attention that they will tolerate people who exhibit these behaviors. However, they do not have to. There are plenty of people out there who will treat a person right.