I once played a gig in a big, crowded, sweaty, venue, where after each song a woman shouted, 'you're sh*t, you're sh*t!'. Eventually, after about 4 or 5 songs the singer had enough and shouted back, 'Well if you think we're sh*t f*** off then!' to which she replied 'Oh I wasn't calling you sh*t'.
Who she was calling sh*t, we never found out?