The first cartoon without Vert. In this cartoon we see Verta scolding her youngest about the dangers of playing with ultrasound — fearing he might burn himself. This one’s along the same line as not playing with matches. Ultrasound, a physiotherapy modality sometimes used in chiropractic practice, has the potential to actually “burn” the periosteal lining of bone if the sound head is not kept in constant motion.
Joke Decoder (panel 26)