From Redditor u/kathjoy:
When I was in my early twenties, I worked at a supermarket. I had been up all night, swinging between burning hot and freezing cold so I was obviously feverish and I had been throwing up 'at both ends' shall we say.
I called up the manager, Steve. Steve was known for being a real a-hole. He never believed anyone who called in sick except his best buds. The conversation went as follows:
Me: Hey Steve, sorry, I can't come in. I'm sick.
Steve: With what?
Me: I don't know. I think it might be the flu. I've been up all night being sick, and I have a fever.
Steve: Don't be stupid. If you had the flu you'd be completely knocked out. I need you in. Come in or you're fired.
Me: I can't. I just told you I can't stop vomiting. I passed out.
Steve: (growling angrily) Either come in or bring a doctors note, or you're fired!
In the UK, you are legally allowed to self-certify for 5 days. This means you can tell your employer you are sick and you do not need a doctors note. If you're sick for more than 5 days, you then need a note. It is also against the law to demand a doctors note during the self-certify period. I knew this, but I was terrified. So I got myself dressed. Almost passed out trying to do so. Then trudged to the doctors some 25 minutes walk away.
I get in to see the doctor and she is furious at me for coming in. You're not supposed to come to the doctors when you have a cold or flue, and of course I knew I should be able to self certify. She told me as such, saying I shouldn't be here and should have stayed at home.
I then explained what had happened with Steve and how he had threatened to fire me over this and I couldn't afford to lose my job - I was struggling as it was. My doctor turned her anger towards my manager. She asked if I got sick pay from the company, and I said yes.
"He wants a sick note does he," the doctor says. "Okay. I'll give him a sick note.
Cue malicious compliance.
Now, my manager just wanted a note confirming I was sick, but instead my doctor wrote something along the lines of this:
'[My Name] has come to the surgery because [manager name] has insisted she come in, in spite of the fact that this is not legal and all employees are allowed to self certify. Due to being forced to make this unnecessary and highly dangerous trip when the patient is ill, has a fever of 39°C, and almost passed out in the waiting room, I am signing [my name] off for two full weeks to recover. Had [my name] been allowed to self certify as is the law, they might only have needed a few days, but due to straining themselves, they now require two full weeks. They are not to be permitted to work until [date 2 weeks later]'
The doctor said she would have signed me off longer but this was the longest she could do without requiring further evidence. So basically, instead of just being off for a few days, I was now signed off for a full two weeks, and I'd be paid for it.
I felt better after a few days, and enjoyed my two weeks off, fully paid, and enjoyed the nice weather we had. Meanwhile, Steve was forced to work overtime because we were short-staffed. So thanks to the doctor, instead of being off for a few days, I ended up getting a nice two week paid vacation, and Steve was given a final warning, all because he insisted I get a doctors note.
TL;DR: Manager demands I get a doctor's note or I'm fired, so the doctor signs me off sick for two weeks instead of 2 days to teach him a lesson.