Spelling errors on professional documents, especially signs/posters/ads. You don’t have to know everything, but you have to check before putting it up.

When I see restaurant specials boards riddled with mistakes it makes me want to not eat there.

I prefer tyranny.co.uk

Now give it a headphone jack and I can finally replace my 3a XL

I’m actually an engineer at [company name]

Bro it’s petty revenge time. [Company name] needs to see these messages and asked if this is representative of their company values.

Hello from Canada’s best and most important and relevant province!

Manitoba!