Bill is very athletic.

He walks to work every day to keep in shape.

But he is very forgetful.

One day, Bill gets to his office and he is soaking wet.

His colleague asks him right away, "Why are you so wet?"

Bill replies, "I forgot my umbrella, and it started raining while I was walking to work."

The next day, Bill arrives at his office and he is shivering.

His colleague asks him right away, "Why are you so cold?"

Bill replies, "I forgot my coat, and it started snowing while I was walking to work!"

The next day, Bill arrives at his office and his hair is all over the place.

His colleague asks him right away, "Why is your hair so crazy?"

Bill replies, "I forgot my hat, and the wind started blowing while I was walking to work!"

The next day, Bill walks to work with a huge backpack.

His colleague notices Bill is carrying a huge backpack, but he doesn’t ask him any questions because Bill looks so perfect!

But Bill’s colleague is so curious so he phones Bill the next day, "What was in your huge backpack yesterday?"

Bill: "I brought an umbrella, a coat, and a hat."

Colleague: "Why did you bring an umbrella yesterday?"

Bill: "It might have rained when I walked to work (just like last week)."

Colleague: "Why did you bring a coat yesterday?"

Bill: "It might have snowed when I walked to work (just like last week)."

Colleague: "Why did you bring a hat yesterday?"

Bill: "It might have been very windy when I walked to work (just like last week)."

Colleague: "You didn’t need to bring all that yesterday! It was forecast to be sunny and warm outside!!"