I was transported to another dimension while going to the wetherspoons toilets

Jack Havok is a man who could drop dead from boredom at any moment. He leads an excruciatingly ordinary life with ordinary friends and works at an ordinary job. But what happens when an ordinary guy comes face to face with an anything but ordinary portal to another dimension? Does he leave this ordinary life behind and dive in? Or does he find comfort in the ordinary and then his back on it? Ordinarily I'd say ignoring the extra-ordinary is the safe option, but well that wouldn't make for a good story now, would it? ... Ordinary