ESTJ: "I can't hear you over the sound of how awesome I am. Focus and listen dammit!!!!!"
ISFP: "What does 'maybe' mean? Oh come on, pretty pleeeease? I'll be your best friend."
INFJ, ENFJ: "How dare you tell me 'maybe'! RAWR, you don't love me!!!"

Those are the types in my life that nag me the most at the moment. ESTJ being the boss. ISFP being a tad needy. INFJ, ENFJ not being flexible when "I've got a lot of stuff going on that day, I just can't promise I'll be there, but I'll try".

EDIT: I want to clarify that I enjoy all of these types. The good times outweigh the bad times.