Devon meathod of transfering warts to a stranger

Warts - By RaffiKojian (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (www.creativecommons.org/licenses/by-sa/3.0/) or CC-BY-SA-2.5-2.0-1.0 (www.creativecommons.org/licenses/by-sa/2.5-2.0-1.0)], via Wikimedia Commons

"Take as many small stones from a running stream as you have warts, put them tightly into a clean white bag, and throw them into the highway or street. Then wash each wart in strong vinegar seven successive mornings. Whoever picks up the bag of stones will get a transfer of the warts."

Hewett 1900