While eating at a restaurant, you saw a waiter's serving tray tilt and an avalanche of food and beverages splatter on four people. "what a careless, clumsy idiot," you mumbled to yourself. which bias have you just committed?

The mumbling to yourself at the restaurant with the words "what a careless, clumsy idiot,"means that you have committed the the fundamental attribution error (FAE).
This bias includes overemphasizing personal characteristics and ignoring situational factors.l As a result they can not properly judge  others' behavior.

He was an adventurer and writer who established a colony near roanoke island, in present day north coralina.