to sell / to make or carry out (a plan or intrigue etc)
售
=
口
+
隹
:
Sherlock Holmes (sh) opened a business in the outhouse's bathroom (ou4). His business plan is to sell (售) mandarins (口) by having sparrows (隹) deliver them directly to the customer. Though the delivery works well, Sherlock has problems with having the sparrows return with the money.