115.01 Ultrahazardous Activities--Strict Liability When a person carries on an ultrahazardous activity such as [________, e.g., blasting], he is liable for any [injury] [property damage] proximately caused by that activity regardless of the amount of care used [except to one who has actual knowledge of the dangers involved and [voluntarily participates in the activity] [or] [voluntarily exposes himself to the dangers]].