Really, sign maker? You couldn't think of any better position for that teacher's arm to be in? If that figure were any more detailed it would be wearing an SS uniform and a Hitler mustache with Mein Kampf written on the childboard. Next time you're compelled to make an offensive sign, at least stick to the kinder, gentler German stereotypes, like beer steins, tubed meats, and lederhosen.

Sources: Reddit