I've had a few times where the DC would talk to me before spoken to, My last dream most likely. There was one DC that was with me twice, And he reacted on its OWN. But, I wasn't Lucid so maybe that's why. But, however. He the DC, I don't know his name but before entering a False Awakening he left the room telling me "I'm gonna get out of here before your cousins get here" and soon after he left (maybe a minute later) a little girl (cousin) came running in and annoying my character. Then my character told her im going to bed. And went to sleep, then I awoken in the dream ( No reality check here >.< because i am still not how we say used to do a RC after awakening)
and walked upstairs, in the hall a door was openned arcing into the hallway and i looked inside and the same guy was there getting dressed (he had his pants on already and was putting his shirt on) he noticed me and said "You forgot to do that thing." <- Mentioning I forgot to do a Reality Check? Maybe