Does my co worker sound like an asshole?

I work for a commercial cleaning company. I've been working with this autistic man for 2 years. A new guy started today and helped us clean, and I was training him. My autistic co worker was really excited to train the new guy. The new guy was going to sweep a room, and my cow worker insisted on training him how to sweep. I told my co worker that the new guy probably knows how to sweep, but my co worker kept insisting. It was kinda funny, and the new guy kind of chuckled. Also my co worker says a bunch of funny stuff without realizing, and the new guy who chuckle a little here and there. I don't know, I never laugh at my co worker because I don't want to hurt his feelings. The new guy chuckling didn't seem to phase my co worker so I didn't say anything. Also, he was just really nice to my co worker besides the chuckling.

Does my co worker sound like an asshole?
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