DH and I went to DD's music concert at school last night. At times, the music was overly loud and I was uncomfortable with it, but I was somewhat embarrassed to see DH blatantly sticking his fingers in his ears for the duration of the loud performances. Is it reasonable to find this rude or is he merely taking care of his own physical health regardless of how it looks? He is in his 60s and has tinnitus, if that makes any difference.