Kamasutra 2.7.26

2.7.26

tathānyad api deśasātmyāt prayuktam anyatra na prayuñjīt//checked

In the same way anything that is a local peculiarity should not always be adopted elsewhere, and even in the place where the practice is prevalent, excess of it should always be avoided. Instances of the dangerous use of them may be given as follows. The King of the Panchalas killed the courtezan Madhavasena by means of the wedge during congress. King Shatakarni Shatavahana of the Kuntalas deprived his great Queen Malayavati of her life by a pair of scissors, and Naradeva, whose hand was deformed, blinded a dancing girl by directing a piercing instrument in a wrong way.