When you use your old school tie to bind your significant other to the bed:

The world’s first dating app for the privately-educated has launched — but its founder insists it has nothing to do with snobbery or social division.

The app, Toffee, launched earlier this week and is the brainchild of Londoner Lydia Davis.

It is strictly off-limits to anyone who attended a state school thanks to a “hybrid checking process” that uses “automated social media cross checks” and a “manual screening process” to make sure the great unwashed don’t slip through the cracks.

But despite restricting membership to those from privileged backgrounds...