To get Goldilocks used to having girls flock to his crotch like bees to a vat of honey, Louis seems to have decided it was important to give Niall a chance to practise running away and screaming before they headed out on tour.
By which we mean he pulled down Nialler's trousers in the middle of a carpark.
Recalling the experience to Top of the Pops, Goldilocks said: "About a month before we started our tour, I was queuing up for a burger at a service station and Louis pulled down my trousers!"
"That was quite embarrassing."