@Mojo You could always ask beforehand how the locksmith is going to open the door. If you still accept drilling, maybe ask for a significant discount on the new lock. If the answer is no can do, at the very least buy the new lock from elsewhere. At the end of the day, unless the locksmith is an enthusiast, they probably don't want to spend the time and effort for picking even if they theoretically had the skills, unless it's some shitty pin tumbler lock an elementary schooler could pick.