Millie - Thanks. I have a whole arsenal of different tests to use but I think I am going to lock them away for a few days
M2O - Thanks heaps for that it was very helpful
I think I had already rationalised that it was a stupid thing to do pretty much as soon as I had done it!!!
Curiosity just won out this morning I'm afraid.
I am going to wait until the end of the week to try again, even though my head will be wrecked and I'll have no nails left