Do not fool yourself that recreational user may do it on Saturday night but come monday morning it is still in his system, depending on the drug of choice. The effects can still play a big part in your safty and those around you. Day dreaming, nodding off while driving, mood swings. These are just a few of the dangers stronger drugs can even cause flash backs months after being ingested. Ask yourself the next time your on the interstate, if you think it is OK for that 18 wheeler driver to get stoned on the weekend, and on monday he is driving a 60+ foot long bullit that can drive right over a small car.