◆竜の鬚を撫で、虎の尾を踏む Ryuu no hige wo nade, tora no o wo fumu.
- 解釈：非常に大きな危険を冒すたとえ。
- Literal：I stroked the mustache of the dragon. The tiger's tail was also trampled.
- Interpretation：The mustache of a dragon is stroked and it is He that brings himself into needless dangers, dies the devil's martyr.
- 類義：虎の尾を踏み、春の水を渉る（わたる）。竜の頷（あぎと）の珠を取る。竜の鬚を撫ずる如し。