Sometimes, an emergency does not require a direct, practical solution, but a good laugh. For that purpose, these emergency displays were made. One for general needs, and one for situations related to studies. For each (hypothetical) situation these displays offer a pun. Use a pencil sharpener in case you’re not too sharp. Stuff your ears with cotton wool if someone talks your ears off your head. Whatever you’re in need of, there’s always an appropriate pun.