That managed to draw a rather short chuckle from him. Indeed, it would be rather fair to give Watson another pair of eyes to notice things.

"I may have to keep on my toes then. With two mother hens running about the flat."

He is mulling her suggestion over very seriously however. While he can not see her personality melding well with the darker underworld of a detective. A keen insight in the medical field would not be unappreciated.