Pancho -
I had to chime in on this one for a few reasons...
1) Jack is right. Three months - or whatever lead time you're comfortable with. Never answer, "Yeah, I can have it to you next week". You'll regret it later. You can always finish early and as the old saying goes, it's always better to "Over estimate and under deliver". If you tell a customer ordering a custom (and co-workers ordering knives count) three months and you deliver in three weeks they are usually thrilled. That is unless they need the three months to get the money together. Still at that point, YOU are ahead of the game and no one is tapping their foot.
2) Never let one custom get in the way of another custom - meaning the call from the customer who tells you circumstances have changed and they "must" have their knife sooner. You have to tell them that they "can't butt in line" as you wouldn't allow it to happen to them. Never let a custom get in the way of knives you need to make to replenish the ones you sell on your web site, or through dealers, etc. That's your life blood. Customers remain your customer because they like your work and they know you'll deliver. The "new customer" (the custom order) will do the same and sometimes the waiting only builds the anticipation. Face it, we're guys and we're much like kids in more ways than our wives tell us we are.
3) I can have headphones on, ear plugs in, the shop door locked and/or the radio up louder than an airstrip and my wife will find a way to startle me.

It never fails. I'm not as worried about messing something up as much as I am becoming a human pin cushion.

An emoticon with trickling blood would be good right here.
Good luck with the scratches. Just my 0.04 cents (adjusted for inflation)