In your Christian walk there will be times that you will have to separate from friends and acquaintances. Otherwise, you'll be tempted to go back to dabble in past behaviors. Understand the enemy...he will use anybody he knows that will carry out his plan to separate you from God. If you are strong in the Lord and have changed your ways, you will become target numero uno and he will use old ties to bring you back to your old lifestyle and, in many cases, you will end up worse off than you were before.