Brenda van Gaal has been bombarded with tweets from supporters since the Dutchman was appointed as David Moyes' replacement with people passing on everything from good luck messages to transfer tips.
The Netherlands coach is not on Twitter, but his daughter is, and she's told fans they are wasting their time getting in touch with her.
Dear MU fans, Thank you for the warm Welcome. But to be clear. I will not pas any Messages to my father.
— Brenda van Gaal (@brendavangaal) May 25, 2014
Brenda is unlikely to be swayed either, given the disciplined upbringing she has got from her father.
In a recent profile on van Gaal, the Guardian's Barney Ronay revealed: "There are two forms of the word 'you' in Dutch, the familiar and the formal. At home Van Gaal has always insisted his two daughters use the formal version when addressing him, even in private."
Van Gaal was handed a three-year contract with United earlier this month and will begin work at the club once he is finished guiding Holland through the upcoming World Cup in Brazil.
- Manchester United
- Louis van Gaal
- David Moyes