Whether you loved it or hated it, the vast majority of your childhood memories are probably based in the classroom or schoolyard.
And if one or two of your former teachers stick out heavily in those memories, you are going to love this Twitter thread.
Fiona Hyde, with a Twitter handle of @andgoseek (get it?) posted a very simple question on social media on Wednesday - but one which opened up a major discussion.
Her question reads: "Who was your weirdest teacher?"
She went onto explain "I had one in primary school who didn't teach maths/Irish for the entire year, but made us learn off the words to Millennium by Robbie Williams and watch Space Camp."
Who was your weirdest teacher? I had one in primary school who didn't teach maths/Irish for the entire year, but made us learn off the words to Millennium by Robbie Williams and watch Space Camp.
— Foofy Hyde (@andgoseek) November 29, 2017
First of all, that song: absolute tune.
There's always that one teacher that would make you wonder how they got the job at all.
Well, you're not the only one.
Our primary headteacher brought a real crossbow in when my sister was in 5th class. He accidentally shot it off inside and it went clear across the class and hit the back wall. He then took it outside to be 'safer'-shot it in the air so kids had to run around
— Doireann Larkin (@DoireannLarkin) November 29, 2017
a German teacher a boozy Christian brother who plastered the classroom with loads of drawings of eyes and messages like 'I can see the messers who ruined the room.' and 'you are being wacthed'
— Darragh McCausland (@DarraghMc) November 29, 2017
we had a recurring substitute teacher all through primary who only taught us how to sing irish songs and who had a soprano range and only let us clap by hitting our index fingers off one another because actual clapping was too loud for him
— sian (@sianvconway) November 29, 2017
we had an Canadian Geography teacher who I'm convinced was a KGB sleeper. He left Canada in the early '90s, said it was a good thing JFK was killed because he would have led us to nuclear war, spoke fluent Russian and left his family to move to Russia a few years ago
— Conall Ó Maitiú (@luigii249) November 29, 2017
my brother had a teacher who used to say "You are trash, boy." And make him stand in the bin.
— David O'Doherty (@phlaimeaux) November 30, 2017
From the weird and wonderful to the downright strange, the thread is something else.
Do you think your stories could beat any of them?