it's all fun and games until someone loses an eye

Proverb

 * 1) Rough play results in injury.

Translations

 * Afrikaans: van lekker lag, kom lekker huil
 * Finnish: itku pitkästä ilosta
 * French:
 * Serbo-Croatian:
 * Cyrillic: играчка-плачка
 * Roman: igračka-plačka