Some netizens suspect he may be a scammer, while others claim he has a mental condition.
The man later refused to get off his car and tried to flee from the authorities.
While PABs are allowed on roads, PMDs are not, and riders must keep left and wear helmets.
Tribecar has since contacted the user and resolved the matter "amicably".
Observers online likened him to Zoro from the popular manga series One Piece.
A lengthy morning meal.
The car repeatedly bumped into the camcar and accelerated erratically.
Kiztopia said it has remained in close communication with the child's parent, adding that the seven-year-old has since fully recovered.
The restaurant manager has apologised for the incident, which the chain described as a "misunderstanding at the point of service".
The culprit wore gloves on both hands and carried a pair of scissors.