In the US, this would arguably qualify as "battery".
"The following elements must be proven to establish a case for battery: (1) an act by a defendant; (2) an intent to cause harmful or offensive contact on the part of the defendant; and (3) harmful or offensive contact to the plaintiff."
Actual physical harm or intent to physically harm to the victim is not required.
"The second type of contact that may constitute battery causes no actual physical harm but is, instead, offensive or insulting to the victim. Examples include spitting in someone's face or offensively touching someone against his or her will.
Touching the person of someone is defined as including not only contacts with the body, but also with anything closely connected with the body, such as clothing or an item carried in the person's hand.
It is not necessary for the defendant's wrongful act to result in direct contact with the victim. It is sufficient if the act sets in motion a force that results in the contact."