I absolutely detest being photographed in any staged manner at events. Family and friends are welcome to take all of the candid photos of me in a natural casual state that they want, but there's no better way to get a guaranteed surly or disinterested expression from me than to interrupt/delay my genuine fun or conversation to take a staged photo for their own "look at our beautiful family" vanity. I'd much rather enjoy photos of my family and friends as they really are/were.