This rite is known only to metis. No one else would ever want to learn it. It honors Father Mule, patron of the middle breed. It enables metis to adopt other metis as their children. Since most metis are abandoned or worse by their biological parents, older metis see these Crinos pups as a personal responsibility. And who better to raise a troublesome and often differently abled metis pup?
The adoptive parent asks the consent of the child's biological parents, if they can be found; if not, she asks the sept elders. (They may refuse.) She then takes the cub to the sept's caern and calls Garou, Kin and spirits (especially Mule, whose coming is taken as a blessing on the cub) as witnesses. The cub is put on the earth and allowed to crawl between the adoptive parent's legs as if being born again. The adoptive parents are then counted as the true parents of the child in every way (including Renown). Metis of rank 5 or greater are very rarely allowed to adopt an orphaned homid or lupus cub; the rite is the same.