How to answer the question, "where's yer brakes?"

Then, from the other side of the road, a lorry was waitng and the driver leant out of the window and shouted "You'd be better with a back brake".
I was seriously pissed with him, having just taken a pretty big fall, all he could say was that I should have had a rear brake. I don't remember what I said to him but I wasn't about to explain the whole fixed gear set up.
Some people really should just keep to themselves sometimes.

What happens is that people attempt to transfer more responsibility onto other road users than is sensible (often while badly informed). Taking responsibility requires maturity and seems more difficult than just blaming things on someone else, which is the knee-jerk reaction of a lot of people.

It's always worth thinking very carefully about whether you want to accept such responsibility. In some cases, of course you do, we all make mistakes, but regardless of what has happened, try not to make any commitment either way in the moments after you've been in a collision or after you've fallen off your bike, as you may still be under shock and unable to think clearly.

Who was responsible is at any rate the least important question in the moments immediately following such an event. So, that comment was just pointless and the last thing you need in a moment like this.