most annoying argument ever?

often translates as 'you have come up with a string of retorts to my every counter argument and now I have run out of things to say'.

also stupid because how many people enter an argument thinking 'I'm pretty sure I'm wrong about this but nonetheless I shall make the case for it'? (other than in debating societies, or when playing 'devil's advocate'/just disagreeing with people for the sake of it as I sometimes do)

in fact let's change what this thread's about. You make a statement and I'll argue against it, even if I agree with you.