A man came across a hungry tiger. [When he] was about to be devoured, [he] begged it wretchedly, saying, “[I] have a fat pig in my pigsty and would like to offer [it] instead of myself.” The tiger agreed and followed him to his place.
[The man] asked his wife to fetch the pig to feed to the tiger. His wife was reluctant, saying, “[I’ve] got plenty of tofu – that should also be enough to make a good meal.”
The man said, “Forget it. Have a look at this guest! Does it look like a vegetarian?” 
* From Feng Menglong 馮夢龍 (1574-1646), Xiaofu 笑府, 12.5a: https://ctext.org/library.pl?if=en&file=92729&page=153.
 In colloquial Chinese, a "vegetarian" also implies a mild temperament or meekness. This figurative sense is more often used in rhetorical questions (as in this joke) and negative expressions (e.g. "someone is not a vegetarian", meaning that person is not to be messed with).
Hanging scroll by an anonymous artist of the Qing dynasty, in the style of Chen Juzhong 陳居中 (fl. early 13th century)
© The Trustees of the British Museum.
The texts and images used on the website of Rachelle's Lab are either from the public domain (e.g. Wikipedia), databases with open data licenses (e.g. Shuhua diancang ziliao jiansuo xitong 書畫典藏資料檢索系統, National Palace Museum, Taipei), online libraries that permit reasonable use (e.g. ctext.org), or original work created for this website.
Although fair use of the website for private non-profit purposes is permitted, please note that the website of Rachelle's Lab and its content (including but not limited to translations, blog posts, images, videos, etc.) are protected under international copyright law. If you want to republish, distribute, or make derivative work based on the website content, please contact me, the copyright owner, to get written permission first and make sure to link to the corresponding page when you use it.
*Read more about copyright and permission here.