I have had 10 villagers in my town lately and every single time I see that stupid tent, I just really hope that it's not a villager I want - luckily I haven't missed any villager, but yeah.. I can still happen. If Fauna shows up and my town is full, I don't know what I'll do..
I had Rudy camp in my town when my town was full. Even worse, only two days later, one of my villagers moved out, leaving a free spot in town for him to have moved in.