It's when people calmly answer the ridiculous questions without batting an eye that they really worry. I saw one show where an officer was asking if the driver had any guns, drugs, elephants or dead prostitutes in the trunk. The guy simply said 'no officer' without even a hint of 'huh?' in his voice. Needless to say the trunk was full of drugs and the guy was so panicked he was just giving robotic responses.
I have worked for 3 different Police Officers (all retired) for the past 7 years - and the stories they tell about quesions asked, manner, and all - And some of the answers are well Out there -
Why this guy went off the deep end -
1 - he was having a bad day -
2 - he is used to crapping on people that he thinks are beneath him
3 - He has a sense of Self Importance
4 - Just ****n dumb.
I vote for reasons 2 thru 4
But then again i am just a crazy old coot.