a friend is a reflection of yourself and sometimes will judge you with wrong judgment.
just because you are wrong to choose a friend.
simple example when you are friends with criminals
then you will be regarded by people as bad people.
Comrades with good people is like a friend with a fragrance seller
even though he does not give you a perfume but the fragrance will perch on your body.
especially if he gives,
comrades with wicked people like friends with blacksmiths,
even though you are not burned by sparks, but the smell of smoke will be with you.