Physical World
- It was a squirrel.
- The floor was made of cheese.
- The fabric of space-time got tangled.
- The cat ate it.
- A temporal rift opened, spilling the contents of a nearby dumpster onto it.
Relationships
- My ex moved to a parallel universe.
- I was having a bad hair day.
- The in-laws were visiting.
- I was trying to get a rise out of you.
- My cat was plotting against me.
Food and Drink
- I had a hangover.
- The nacho cheese dispenser malfunctioned.
- The coffee shop ran out of coffee.
- Aliens were trying to steal our snacks.
- I was trying to eat a whole pizza by myself.
And that's just the tip of the iceberg. Want to know more? Definite Causes, or perhaps Alternate Causes?