Not because he thought it was funny but because he refused to take it seriously my ex-step-father used to lie when asked if he read the ingredients before serving us things he bought for dinner. We didn't throw up on him or need an epi stick so he didn't think it was worth "getting in trouble" or throwing out food because he thought egg noodles were gluten free or all kosher for Passover stuff was, even after we tried to explain about Matzo flour, so he didn't need to read the ingredients. My brother in law lied about whether he cleaned the grill after toasting hot dog buns because he thought "nothing could survive being cooked onto the grill" as if gluten was a germ. He thought it would prove we were being bad guests demanding extra work at his cook out if he didn't do what we asked and we didn't get sick.