#He already gets enough belittling of his career from Ratigan.

[0fbakerstreet]

Yusuke perches down to take a look at the mouse before him. "Of all the shit I've seen you definitely take the cake..or cheese in your case. A friggin' mouse cosplayin' Herlock Sholms (cause japanese)."

  

❝ It's quite alright, there's a first time for everything, —Basil of Baker Street. ❞ His reputation precedes him among mice, but to humans he was nobody of note, bordering on odd.

Also, despite the fact he literally lived a floor below the human man Yusuke mentioned, the comparison, while apt, is mostly a coincidence. Basil had chosen his detective career on his own accord, not out of plagiarism.

 ❝ A Detective in my own right, I'll have you know. ❞