No, You're Not Boarding My Ship

"And just why would that be, Human. You seem to be all alone on it?"

"Because my M-7 Multitronic System will destroy you if you try."

"You are bluffing. Your Starfleet's "rules" will not allow you to do so."

"Well, I'm not actually in Starfleet, and I will let it destroy you if you don't move along."

Done