I'm currently trying to fit a USB cable into the back of a computer. The socket is, as sockets so often are, behind the computer, and the computer is under a desk in the sort of squirrelly space that computers live in. All rather predictable. I did the usual fiddle back there, that customary under-the-sheets USB foreplay – is it that it? – and then the three rotations (if, by any account, you have managed to muddle plugging in a USB cable with foreplay, don't do this). I think it might be in. Or I may have managed to insert into an air vent (so foreplay comments earlier, you may be doing something very wrong if you have).