The pair were sent a copy of the contract by their landlord and – instead of signing it in its original form – decided to sneak in clause 16, which reads: ‘Lessor shall provide birthday cake for Lessee(s) in the weekend closest to their birthdays, which are June 7 and February 17. Vanilla cake is not acceptable.’

And the landlord signed it, Legal Cheek reported.

The lease went viral after it was posted on image sharing site Imgur by a user who goes by GloriousGherkins.

According to a report by Domain, several commenters have pointed out that the addition probably wasn’t legal and may not be valid under contract law.

‘He signed it after I made the change, and I’m going to hold him to it,’ GloriusGherkins stated in response to the comments.

The lesson?  Don’t send a rental agreement in a word document.