So instead of saying "Wenger should F... off somewhere else", you gently say "I think it's time for him to go".

It's the same message and not just 'spoilt brats' voicing their frustration. Did you boo the players off during the Fulham game, join in with the 'spend some money chants' or walk out early during the final game? Isn't that just as 'disrespectful' or just expressing your frustration?