Random Thought #3

When teaching children how to spell words, teachers usually start with "at" and put letters in front of it to create words (i.e. "bat," "cat," "hat"). So, the other night I'm laying around thinking about the words fought and taught. Why is fought spelled with an "o" and taught spelled with an "a"? No wonder so many people can't spell properly (or speak properly, for that matter)... we make it so damn difficult.