My favorite thing about MC RP is the mobs. So you're just sitting there talking about a garden party when, oops, zombie got in. So you get up, casually kill it, and sit back down. "So about those flowers..."
Or sitting around a camp fire having dinner when an enderman murders you, so you came back from the dead to race across valleys and ford rivers, your friend gives you the things you dropped, and you resume your conversation without even breaking a sweat.
Or you stand by a tree out in the woods, flirting with another fair lady before having an arrow strike your knee then your skull, nonchalantly looking over to see your 7000 hivemind dogs teleport to your and flood the skeletons.