The other slaves were not supposed to be following them. It defeated the whole entire purpose of having someone else to buy them for him. Pulling out his cell, he sent a rather annoyed text to whom he had purchase the slaves that day, then made a note to remember to never let the man do it again. There were plenty others though that he had, and losing one person would not matter much. So long as he didn't go and try to tell everyone about his scheme, which he doubted would happen, it wasn't like he paid the people to do it. They mostly offered, were people who didn't agree with the slavery either, and were his friends. David didn't just trust anyone to do the job, that would be foolish. For a rich boy in his early twenties, the blonde man was not stupid.
Fortunately, the other cars that the other slaves were supposed to go in were still there. After helping them into the respectful cars, he got into his own personal car with Sara and the purple haired boy- they were the only ones. Without him having to say anything, the butler shut his door and moved around to the front seat. A few moments later the car lurched and they were off, heading towards his mansion a little less than a half hour away.
The windows of the cars were tinted, so that it was not too bright for the slaves, whom were not used to sunlight. Though they were not blacked out either, so it was like a prison, David didn't want them to think negatively about their first experience out. They could look out the windows without their eyes hurting very badly, which he counter as a plus. Turning towards the ex-slave, he stuck out his hand in a friendly and hopefully non-scary way. "I'm David, what's your name?"