As subtle as a kunai to the face.

Has a different impact than when I did that for someone.

Him: "brrr...my face is suddenly very cold..."

The Extraordinary Life of Hideyoshi Toyotomi:

Tokitiro (Hideyoshi's birth name) served under Nobunaga in 1554. [snip] He came to be appreciated by Nobunaga little by little. One famous anecdote is that one cold day he put Nobunaga’s Zori, traditional straw shoes, in his clothes to warm them, which Nobunaga admired.