Happens at Sunderland all the time but a lot of these people would find it hard to appease life in brilliant times. It's called a carrot IQ and unless it kisses them then it's a negative
Oh I have a guy who sits next to me in the East Stand and he has been known to start moaning before the game has even started. When they announce the teams it is often a case of why is X playing and then when the subs are named there will be one who should be in the team not on the bench and another who shouldn't even be on the bench. If he was manager I am sure our three subs would all be on the pitch within the first 10 minutes or so.
I was once at a lowly attended Scarborough match and started moaning at around 70 mins as wor lass was 'assisting'