What things have NPCs said in the games that you found especially funny or memorable? (I'm not talking about named characters, just normal NPCs)
One of my favourites would have to be the Youngster next to Tubeline Bridge who says "When you've crossed all of the bridges in Unova, something really cool will appear! If I spread this rumour, I wonder if it will become urban legend..."
Also - I've been wondering if it's coincidence that the worker at the entrance to White Treehollow says "Hey, welcome!" when you enter and "You come back, now!" when you leave, like Mabel does in Animal Crossing.