My mother was told – and believed- that if she bit the uh Eucharist wafer or whatever, it would bleed forever and that you would drown in the blood. Like it would just fill your stomach. I guess you wouldn’t drown, I don’t know what would happen if your stomach was just forever filled with blood, you’d probably get sick.
My informant was told this by his mother who heard it at church as a girl. What’s interesting is that this could have multiple purposes. Maybe another kid told it to her just to scare her within a religious setting as a form of children folklore backlash against an establishment and ritual associated with parents. Perhaps she was told this by an adult who believed that biting the communion wafer was disrespectful, because it represents the body of Christ and biting it might represent mutilating it, thus s/he scared my informants mother into not biting it.