World's Worst Show-And-Tell?

An Australian girl brought a grenade to school for Show & Tell. Why? Because she thought it was a money box. Yep, kids in Australia have no idea what money boxes or grenades look like. That's cool. In the USA, we don't know what money boxes are either. We call those things "piggy banks". Thankfully, the grenade was inactive and is now with the authorities. The real loser here? That kid who was up next. We may never know what he wanted to show and tell or why he was carrying that turtle.