Do Arsenal have the most fickle fans in football?
Pre-season friendlies aren't exactly designed to stir intense passions - the clue lies in the name.
They are little more than a chance for players to ease their way into form and fitness, for fans to catch a glimpse of new signings - and, of course, for clubs to get some money in the coffers by staging a few glamorous but ultimately meaningless matches.
But try telling that to the pocket of Arsenal fans who BOOED their side off against Napoli in the Emirates Cup - AT HALF TIME.
Admittedly the Gunners were 2-0 down after a fairly rotten first half, but still - it's not as if the match was any more than a chance for the side to blow away some summer cobwebs.
But eight years without silverware have made Arsenal fans increasingly impatient, and 45 minutes of the same old defensive errors proved too much for some.
And those new signings we mentioned? Well, there haven't been any. Arsenal's pursuit of striker Gonzalo Higuain ended in embarrassing failure as they were outbid by Saturday's opponents Napoli (Higuain also received boos).
Where previously Arsene Wenger enjoyed unwavering support from the terraces, his failure to bring in trophies has led many to conclude it's time for a change.
A bad half against Napoli was enough to provoke jeers among a minority who quit on their team even before a ball had been kicked in anger.
So it's not like the discontent has come from nowhere (and it was far from the whole stadium) - but still, there's a time and place for venting your frustration, and an exhibition kickabout isn't it.
But they weren't booing for long - goals from Olivier Giroud and Laurent Koscielny earned Arsenal a 2-2 with a much-improved second-half performance.
And that's in spite of - or perhaps because of - the boo-boys at the Emirates Stadium.
Woe betide the Gunners if they defend like that in a proper match.