They drill in your mouth. Every drill I've ever handled had pictures of marred stick figures that got the drill too close to their face. This tender cartoon was intended to let those who can't read know that drills should not be used too close to your face, much less in it. They stick sharp objects in your mouth. Pretty sure my mom told me never to do that. While all of those tools are in your mouth, they ask you questions, but somehow still know what you're saying when you respond. Personal space issues seem non-existent. This is all terribly strange.
To top it all off, we pay for these things. "Yeah," we think, "you deserve compensation for this." Nice. Real Nice.