The easiest way? Don't do them. I must agree with Colleen, you're on probation for using them, so why still use them? Are you that addicted to using dr**s that you'd risk more punishment? Sounds like your officer needs to know so you can get more help.
Dr**s aren't fun and you don't look cool doing it. Have you not seen the videos/pictures of people who use them? Do you want to look like those people?
You pass by not doing it ... you're on probation - is that not reason enough to start shaping up your life?
Don't do dr ugs.