Pics

Here’s one way to stop people running down a corridor

The floor in this tile showroom in Manchester is flat, but they’ve come up with a neat way to stop people running down it (at least once).

Here’s some video of a floor you don’t want to encounter with a hangover.

And yes, it only works from one perspective.

Here’s another evil trick carpet.

Although if you have a burning desire to ruin people’s heads and can’t afford a carpet, there’s always this rug.