If you’re going to criticize somebody or call someone out on something, it’s probably best that you know who you’re talking to. Because as you can see from this hilariously cringeworthy list compiled by Bored Panda, all sorts of awkwardness can ensue when you don’t do your research first. From a know-it-all correcting J.K. Rowling about the reason behind Severus Snape’s demise, to a clueless smartass who asked the Prime Minister of Malta who his sources were when he tweeted about a potential hijack situation, the examples below serve as an important reminder that if you aren’t sure who you’re talking to then maybe keep your opinions to yourself. Don’t forget to vote for your favorite!

#1 Twitter User Tells Woman With PHD In Astrophysics That She Needs To Learn Some Science

Image credits: rj_inthe412

#2 That Is Amazing

Image credits: Hector Delgado

#3 Stupid Hipster Chick

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#4 Mansplaining

Image credits: EmmaRitch

#5 What Do Women Know About Comics, Really?

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#6 Harry Potter Fan Reveals Snape’s True Motivation To… JK Rowling

Image credits: theangelremiel

#7 What’s Tony Hawk Up To These Days?

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#8 Marvel Talent Scout Asks To See Aspiring Artists Work. Is Told To Go Away

Image credits: CBCebulski

#9 You’d Think The Prime Minister Would Know

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#10 Patronizing Programmer Gets Told

Image credits: GambitGamer

#11 Talent Scout “Discovers” Annie Lennox, Offers Her A Chance In The Industry

Image credits: Annie Lennox

#12 Footballer Jay Rodriguez’s Dad Calls Out Twitter Rumours

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#13 Trashy Girl

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#14 Farmer Asked If He’s Ever Worked On A Farm

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#15 Lewis Black Looking On While Fans Pose With A Lewis Black Poster

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#16 I Wrote The Article

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#17 A Player On The Dallas Cowboys Gets Called A Bandwagon Fan

Image credits: AttackoftheMuffins

#18 “What Do You Know About Terrorism?” He’s Former Head Of Anti-Terrorist Intelligence And Special Branch In Northern Ireland

Image credits: ConsueloHatmaker

#19 What Did You Do?

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#20 Got Any Sources For That Horseshit?

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#21 Official Lights Out Review

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#22 When People Ask World Record Holder To Take A Picture Of Them

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#23 I Was There

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#24 People On Twitter Don’t Realise They Are Arguing What Caused The Fall Of Rome With The Professor Of Classics At Cambridge

Image credits: G_Comstock

#25 The Drummer Of The Smiths Is Told A Fact

Image credits: Mike Joyce

#26 I Am The Reference — Co-Author Of Zlib Gets Asked For Wikipedia References

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#27 Person Tells Editor Of National Review Online That He Needs To Try Reading Conservative News Sources

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#28 Deputy Managing Editor Replies

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#29 When You Assume

Image credits: C4Ciaran