Ice-cream cone was actually invented by mistake
Many of us prefer to eat ice cream in dishes and many of us want to eat with a crunch of a cone. But the invention of the cone was actually an accident. It was in the year 1904 World's Fair, an ice cream maker was struggling to keep up the demands and eventually ran out of the bowls to serve ice cream. And luckily his stall was just beside the waffle maker and seeing his condition the waffle maker jumped in to help him out and he began to roll his waffles into the shape of horns to serve the ice cream and this is how we got cones.
Billy has also appeared in films other than Saw. Insidious, Dead Silence, and Death Sentence all featured him as an Easter egg.
The jury is still out on whether those who believe in conspiracy theories may be persuaded to change their beliefs.