When you go for long hikes, a rucksack is an essential bit of kit to take along. It is there to take up all the stuff you might need while being on the way for several hours. If you pack it right, it will be a big help and hardly any trouble; if you pack it wrongly, it will be a pain in the neck and possibly dangerous. Packing a rucksack is not rocket science, but taking some care with it helps a long way.
When you mention the name of Tannhäuser, people either look blankly at you or assume you refer to the famous opera by Richard Wagner. The opera is correctly called Tannhäuser And The Singers’ Contest on Wartburg, and Tannhäuser is the titular hero in it. Tannhäuser was also a historical knight and singer songwriter.
Louis Tomlinson played soccer for charity and went down in a tackle. You don't get that as a headline in normal soccer. But this tackle sent Twitter ablaze with tweets. Louis Tomlinson hurt his knee and left the content of his stomach on the turf. These things happen, usually when amateurs play soccer. Headlines don't come easy, and Louis Tomlinson really did his part to get them noticed in a field they don't normally dominate.
Mirrors are mirrors, you would think. But even if you are a stickler for reality, a mirror is sometimes not what it seems but might be a means of secret observations. You may see them in most crime series on television. But even outside of fiction, cases are known where such observation on the sly took place in locker rooms or bathrooms.