[1] He became famous for radically piercing his body with all kinds of objects apparently without injury, even surprising the medical community at the time.

Later he would claim to have made money by letting people pierce his body with "dagger-like objects", as well as swallowing glass and razor blades.

[2][better source needed] Although not as widely documented as his sword piercing feats, Dajo claimed that his invulnerability had been proven by numerous means.

In an interview in Time magazine, he also declared his invulnerability having been tested with burning irons, boiling water, and having been shot through the head from half a yard distance on two occasions.

He supported this by exhibiting two scars allegedly from the shots, one in the centre of the forehead and the other above his right eye,[4] however, his autopsy showed no traces of any injuries to the head.

Ten days later, when De Groot picked up his wife from the airport, Dajo lay down on a bed and went into a trance-like state.