Paul Mescal is right to call out being groped. Celebrity selfie culture is out of control | Tim Dowling

The one time I was asked to pose by a snap-happy fan, I felt strangely disorientated - especially as my son had taken an ironic selfie with Mark Francois MP

Justin Bieber won't do them; neither will Emma Watson nor Jennifer Lawrence. The Game of Thrones star Kit Harington sets aside days when he refuses to allow what he calls the photo thing".

Celebrities who won't pose for selfies with fans offer a variety of reasons. Harington says it leaves him feeling like a mannequin". Chris Pratt has said that a selfie is not about enjoying the moment; it's about stealing the moment to brag about it later".