Okay so today is the day for my Rapid Test 9 panel UA at Concentra. The last 2 mornings I used at home test kits and failed both with the first urination of the day. So I am going the subbing way. I bought a 3oz bottle of agent X unisex synthetic urine. I am in work clothes and plan to go around lunch today. I'm going to call to see how long the wait is before. The best place it fits for me is on the inside of my sock with my dress pants covering. I have taken a test once at a Concentra here in TX and they just told me to empty my pockets, never asked for me to lift my pant legs. Has anyone had any success going with this product and in the sock?? Thank You!!