Yes. Clearly it's just a matter of time.
Most medical toxicologists were not in practice in the years when nicotine sulphate was actually used as an insecticide, but the older medical toxicology literature has many case reports of children dying after exposures to liquid nicotine. Of course, the concentration was very different. It used to be anywhere from between 24% up to 40%. We're down by a factor of about 10 with the preparations that are available now.
It's just a matter of volume. If a child ingests enough liquid nicotine, that child is at risk of dying and will likely die very quickly. Anything I can do to help that child.... But short of supportive treatment, there's really nothing I can do.