Laughing at funerals

I read in one post is it normal to laugh whilst attending a funeral. ABSOLUTELY NOT. My ex imbecile senile Aunt had a whale of a time LAUGHING by the ceremonial graveside rites of my poor dear sweet YOUNG SISTER whom died suddenly of terminal cancer. This EVIL SMIRKING JUDAS jovially tossed dirt upon my sister's coffin then burst into jovial laughter. The person who made an earlier post who laughed at a funeral then enquired "am I an ASSHOLE," my answer is YOU SURE ARE, just like my ex aunt.