The Mongols reportedly killed the last Abbasid Caliph of Baghdad, al-Musta'sim, by wrapping him in a carpet and having horses trample him instead of directly shedding his blood. The method was supposedly chosen because royal blood was considered sacred.
This is a perfect example of the ridiculousness of religious and/or traditionalist dogma.
Ignore the spirit of its law by exploiting the letter of that law.