Don't do things last minute!

So this is random but... trying to get a head shave and a 3 angle valve job done within two days... After explaining the time line to the machinist, "oh yeah, shouldn't be a problem" is the answer. "If anything I'll call you Friday(the next day) with good or bad news" Friday comes no call... Saturday, I call, the answer is... "he'll try to get to it Monday." Kids, don't wait till the last minute, now job will not get done by deadline and money is wasted down the drain... Hopefully I can learn from this mistake! (Highly unlikely) lol