We had a lot of work done on the house in 2007,using my redundancy money to pay for it.We had a shower room put in and the bathroom and toilet knocked into one.Our bloke sent us to his mate,we got a small discount.So on go the tiles.After they left that day.I went up to look around,i noticed what i thought was red powder marks on some corners.But i did not touch them.I waited till all was cleaned grouted and shined up.When i looked again,these red powder marks were on the tiles.they were the marks left by the stacking supports during firing.I was not happy,but it would have caused damage to take them out.Now eight years later you don't 'see' them,and just think,What a twat he was for doing that.Would he have liked it had i not paid my bill for his work.No one has every got one over me since.I watch them like a Hawk.