Hello All, I have a co-worker, he's on kidney dialysis, has high blood pressure, openly admits to using drugs, mainly Marijuana, but also is addicted to Oxycotton, and Percucet. Not to long ago i had to use his work space (18 Wheeler) to deliver a load due to he was going in for emergency surgery, anyway, in searching for a pen, if found three tubes that were filled with a yellowish- orange color fluid. there were needles on the floor by the trash can, so i wondered if the fluid wasn't for injections. Can anyone tell me what this is? I am worried about his health anyway, due to he comes to work in the winter months some days, with crutches. I can't bear to see him climb in his truck. I'm not trying to be vicious or mean, but if he were to get into a wreck due to having a diabetic attack in one of these vehicles, i could never forgive myself.