I have this co-worker who calls in sick a lot. When he is here he's always complaining about how sick he is. I'm about 90% sure it's all from some sort of addiction. Lately he keeps telling me that his skin is itching him and the ceiling dust is infecting his eyes. Always cleaning his eyes out with water so they look bloodshot. He also thinks everything is tainted, trying to get me to smell random foods and talking about how he thinks another employee is poisoning him. Also in the past three months he keeps telling me increasingly horrible jokes, like really profane awful jokes out of nowhere and sending me pictures of random odd things. Sometimes I catch him talking to himself too. On a few occasions he will ask me to look at moles and spots on his back that are hurting him. He only drinks Mexican Coke's because he thinks HFCS is poison from the US Government. Work with any fun people?