Someone who knows what he's after. Just a warning though, and perhaps a plea in favor of one.
You see, I'll stay out of your business if you stay out of mine, and your dear little card thrower is the father of my apprentice. She's a fastidious young lady who would greatly help me in my work, if you catch my drift. I don't care what you do to the others, but I would be greatly appreciative if you would leave her to her own devices. I'll see to it that she stays out of your business as well.
Not that they're very close to begin with, but if you're as strong willed and straight-thinking as I am, you'd go after family and friends first. She's mine to deal with, and I'll deal with her as I please. And since you seem to be a reasonable fellow, you'd let another fellow's apprentice alone.