In past experience, I have had to eat a few "rut rohs". The old saying of the customer is always right is more true now than ever before with the internet. I have in recent years learned that communication with the customer and record keeping saves eating the rut rohs and the ensuing bashing that occurs online. I have no problem emailing a customer again just to make sure of this or that or whatever. Actually they get a warm fuzzy from my attention to details. I hope he makes it right.