"He doesn't, at least, not that I'd ever seen, but when you're working for Bellatrix, everything has to be perfect." Of course, Vera didn't have experience working for Bellatrix, just living with her. However, it made sense that if you had to be perfect in order for her to love you, you had to be perfect when she was actually employing you, especially with the parade of secretaries she had seen come and go in her seventeen years.