Finding out Stephen Fry has uttered a statement which isn't entirely true is a bit like discovering that not only is Santa not real but that, in fact, he was based on the man who gave The Twang a record deal. It's our sad duty to report that even QI, the receptacle of all things wise and witty, sometimes goes a bit wonky.
10. Welsh Blues
Imagine the disillusionment in the valleys when Stephen said, during Series 'B', there's no word in Welsh for 'blue'. There is, and it's 'Glas', Welsh language fans. The only way he can really make it up to us is if he and Alan appear in a Swansea-based remake of the Belushi classic, appropriately re-titled The Glas Brothers.
Not strictly an error this one, but one of the funniest moments in QI's glittering history. Stephen during Series 'E', trying to say 'The Parthenon where the Acropolis is', went all giddy and then corpsed, giggling like a schoolgirl at a McFly concert, much to the delight of all people everywhere. It was like watching God burp.
8. Dark side of the Moons
QI has said more than once, including in one of its delightful hard-back publications, that the Earth's Moon is not the only satellite spinning around us like some sort of galactic Kylie Minogue. The others don't orbit the Earth though, so they're not technically Moons. This doesn't necessarily mean NASA won't fake a landing on them.
7. Florence Pie
This one from Series 'F' sounded so good it had to be true: Florence Nightingale invented the pie chart. That's trivia gold, that is – it's like Daley Thompson patenting the Breville Toaster. It's not true, sadly. The honour actually fell to William Playfair about twenty years before Florence and her nursing machines.
6. Worm your way out of this
The 'A' series stated that the longest animal in this poor polluted world of ours is the lion's mane jellyfish – we believed it too, seeing as we'd never heard of it. The problem came in series 'C', when the bootlace worm suddenly held the title. Maybe it'd been working out, or perhaps a worm had a one night stand with Peter Crouch between episodes.
5. Flower power
This one from Series 'B' came straight from the horse's nonsensical mouth, sort of. Bill and Ben, flowerpot men by trade, spoke a language called 'Flobbadob' according to QI. Not so, said a letter from the son of their voice-over man, it was actually called 'Oddle poddle'. Presumably the letter was written in crayon.
4. Dilly Boys
We all know the statue in Piccadilly Circus is of Eros, right? No, apparently, so we're collectively thicker than Alan Davies' lead collection. No need to get too glum though, because it's not the Angel of Christian Charity either, as QI proclaimed in Series 'C', but Anteros – the Greek God of requited love. Wonder why the basement dwelling QI elves didn't recognise him…?
3. Hot water
It's not just Stephen and the elves who've lied to us like an estate agent with a personality disorder – the guests have been at it too. Dara O'Briain, supposedly a science nerd, dropped a clanger in Series 'C' when he said the triple point of water is zero degrees C. It's obviously 0.01 – dur Dara, you fick or summink? He didn't take the after-the-event points deduction well, either.
2. Fight, fight, fight
Unsurprisingly Stephen caused controversy in Series 'F' by claiming Muhammad Ali could have had Bruce Lee in a tear up, with fans of Lee inundating the show with complaints (written on ninja death stars, probably). After considered reflection the elves essentially retorted 'Ali was much bigger, so shut up'. Sadly there's no legal way of settling this one.
We wanted this to be true, so much. QI claimed, in Series 'B', that Berwick-Upon-Tweed remained at war with Russia until 1966 due to not being part of Great Britain. Sadly, however, a Window Tax during the war had revised Berwick's lone-star status, meaning it was never really at risk of Russian invasion. Shame.