In some "VERY RARE" but still plausible scenarios it can actually cause problems for people beyond being taken out of the immersion. Most folks have heard a story about crazy "Ex's" at some point. For those people I make the exception, but as a question of etiquette in gaming: it is on both parties to communicate their needs before stressful activities. If after, call your friend a baby articulately by sharing the responsibility. Say " hey friend, what way should I address you so that I can say less syllables than bygraptharshammer to get your attention?".