Tightening brake blocks is not rocket science, and you really should have checked them. double check anything to do with braking and transmission.
The mechanic must have been busy as I discovered the brake blocks were on the wrong way around when I got home, the quick release mechanism was damaged and the front deraileur cable fouled.
My bike had its 6 week service at Halfords last month.
My front brakes failed on my way home when one of the brake blocks came loose. Well done to the mildly disinterested employee who had my bike for 12 hours
It happened after I had been in Halfords to try out a Boardman road bike I was after. I will not be trusting that branch again, although I will have to get my C2W bike from a Halfords somewhere.
I really want to start maintaining my bikes myself so I'm going to look for an evening course at the local college or something.
I learnt by doing - from age 7 onwards, helped at various stages by bike shop owners and mechanics. If Fluffy can find a course, and then use that with the Sheldon Brown and Bicycle Tutor web sites there should be no problem.
Components and frames are now so well toleranced, and the various mechanisms and adjustments so simplified, compared to the past, that anyone with reasonable practical abilities should be able to do perfect and completely safe maintenance on their bike.
That said one of my bikes came with lifetime servicing, so the LBS it came from service it, and they're almost as good at it as me.
I only quoted the links for the OP, I've known how to service my bike since I was 10, I am now at the ripe old age of 30
I think you mean uninterested. Disinterested is a cool impartial evaluation of the facts.
Spare me