The problem with the bolt as with most of these things is the human element
Does the bike belong to a customer who has got work done before and will again in that case if it meant an extra half hours labour and a 2 euro bolt I would cover that but if it meant a few hours work or an expensive replacement part I would ask the customer to contribute towards it
If the bolt broke because the last guy at it did something wrong or it the vehicle belonged to a awkward customer who never had dealings with before then they would have to pay the full price
There is no set rule it depends on the human element
Some one is fair with you the you are fair with them but is someone is awkward contrary or u just cannot click with them u will treat them accordingly
Does the bike belong to a customer who has got work done before and will again in that case if it meant an extra half hours labour and a 2 euro bolt I would cover that but if it meant a few hours work or an expensive replacement part I would ask the customer to contribute towards it
If the bolt broke because the last guy at it did something wrong or it the vehicle belonged to a awkward customer who never had dealings with before then they would have to pay the full price
There is no set rule it depends on the human element
Some one is fair with you the you are fair with them but is someone is awkward contrary or u just cannot click with them u will treat them accordingly



, he's into all kinds of funky shit) in that if I work on a bike and a part that's at the end of it's serviceable life breaks while I'm working then I'm happy to fit a replacement on the basis that it's supplied by the customer. I won't have been the person to have used up the life of said part, it's broken because it 'needs' replacing, not because I broke it. However if "I" break something through my actions I damn well fix it on my own time and cost. 
