Twitter user King Arthur & Excalibur posted an image of a Sean the Sheep hot air balloon and joked: "Oh c***...this is not my fault with the #SpyBalloon #UFO #Meme as someone sent it to me and it ...

Balloons were used for spying and bombing throughout World War I, and German zeppelins regularly crossed the English Channel to drop hand grenades or small bombs on London in early, primitive air ...