So I'll hold my hands up and say I was partly to blame for the 'incident' that resulted in losing John - John, I'm really sorry, I was heading what I thought was the only cycle-friendly route to the Severn Bridge, I didn't know there was another route that we could turn on to.
Genuinely sorry to cock up your evening - it was naiveté on my part rather than anything malicious (and I wasn't the only one to blame!).
Other than that, nice ride, good to meet some people I haven't met before, but marred by the balls-up. Sorry to anyone else who was pissed off too - like I said, it was my unfamiliarity that (partly) caused it, rather than anything spiteful.