I thought my Dad was the only person who did that, now I read this and many males do it. I should show this to my mother when I get the chance. When I was little, my Dad often felt uncomfortable to eat in front of other people. Sometimes he did have something, but very often uncomfortable. So he had to have real dinner at home after the visit or party, always annoyed my mother. Now she can see many males do that.
I think I inherited this uncomfortableness from my Dad. Often I don’t feel comfortable eating at parties or during visits. Nowadays I’m trying to get over it and I do eat, even when I don’t feel like it.