Picture this. One know-it-all cretin walks in and orders a pint of bitter. “Oh you need to tilt the glass more”, “that pint needs more head”, “it’s too flat”, “you need to let it settle for longer”.
Oh sorry, I didn’t realise you were looking for a job here? I’ll tell you what you numbskull, why don’t you hand over your CV with all your bar training and your personal licence and I’ll pass it on?
What do you mean you weren’t looking to do my job for me? But how will I know I am doing it properly without your ‘helpful’ advice?
That isn’t what you meant. Well, keep your so-called well-informed opinion to yourself then. Moron.