A woman has managed to incite a riot on Reddit after she allegedly left the following 'tip' after dining at an expensive restaurant: 'Single mom, sorry.'

The waiter's friend and fellow server posted a photograph of the receipt, blasting the woman for blaming motherhood for her lack of social graces and general decency add then adding 'Thank you, it was great' at the bottom.

'I'm sure $140 could have gotten you and your kids a week worth of groceries, but instead you spend it one meal?!' Redditor PhoenixSongFawkes wrote. 'For shame!'

Several single mothers refuse to belief the receipt is real, saying the Redditor is exacting a vendetta against them.

Thousands of outraged Redditors have commented on the post, musing on the woman's excuse as well as whether or not the waiter was right to complain.

He also called the note 'insulting' and 'disrespectful,' especially coming from someone who claims to live on a budget and should understand the plight of the waiter, who makes little more than $2 an hour.