Had some early fireworks! Not literally, between me and trainee. He's had a machine down all day that motor mouth left him. It's a job that'll take 2 people, and boss asked me to go help. I didn't want to, but I highly respect my direct supervisor, so I went over there. I told him, and he (trainee) started running his mouth about he wasn't working on it. I tried calmly telling him that the boss said to, but he kept running his mouth. I told him fine, but that I'd tell the boss he said no, which I did. I started doing what I could, and he came back over after 30 minutes and started saying stuff, and I went off. Told him I didn't want his help cause he didn't know what to do anyway, just go walk around or something. That I don't care about his love spat with motor mouth, they both need to quit being lazy. He shut up and started helping