So her hunch had been right...but...what the hell? There was no way this was the same guy. The Doctor had been cheerful and tolerant and...well...maybe a bit unorthodox, but this guy...he didn't look like he could smile if his life depended on it.
"Might I ask what Regeneration?" she asked. The Doctor she knew was the fifth incarnation. Judging by the change in attitude...her guess was this guy was going on fifty.