Hulk smashes his hands together, creating a boom which knocks out Hellion, rupturing his eardrums. His "lunatic laugh" has been shown to disorient opponents and even shatter their eardrums. The gunfire from the police was sufficient that some officers suffered ruptured eardrums. Thunder can rupture the eardrums of people nearby, leading to permanently impaired hearing. Her many hours spent submerged in a studio tank resulted in ruptured eardrums numerous times. A complete physical examination by paramedics or physicians may reveal ruptured eardrums. Retraction of both eardrums is less common than having a retraction in just one ear. Common ailments were ulcers, perforated eardrums and poor eyesight or hearing. Lizards have moveable eyelids, eardrums are present and some species have a central parietal eye. In his decompression chamber experiments, he and his volunteers suffered perforated eardrums. Some revolutionaries, led by Necator, attack him and smash his eardrums. The pupils are heart-shaped, with the eardrums not visible. They have no external eardrums, but instead subcutaneous cartilaginous disks that serve the same function. Early tetrapods likely did not possess eardrums. She gets her point across, splitting a few eardrums in the process.