I take it as insult...

Today, friends got together at my place. During dinner time, Peter(6 years old), son of my friend didn't want to eat anything, but his mom seemed no tolerence on that and forced him to sit at the table. He cried : i just don't want to, because i don't want to be chubby. My son(11 yrs old) was sitting at other side of table, staring at Peter after he said aboved and popping up: I take that as insult. ( My son is quite chubby in fact). Everybody bursted into laughter.