He did feel it, and it surprised him. Not quite like his own, more organic. Human. He could feel it though, and even with this hateful form he could focus on that and not what he had to do.

"He makes me the most uncomfortable..." he admitted, though he began to work on it.

The further he went, the more memories he recalled. This man throwing acid at him to get him to change into something he found more appealing (or else be naked). Him threatening to kill people to keep Data obedient. Showing him off like a prized possession. Punishing him for disobeying...

Then there was hate. The one man Data truly did hate, even when he didn't understand what hate was. The one he was willing to kill had the Enterprise not interfered...