morning thought

Does anyone else find themselves policing the express lane at the grocery store, making a mental count of the number of items the people in front of you have, seething when someone is an item over, making up rules to a very loosed interpretation of the word "items" (such as different flavors yogurt counts as 1 item, but an apple and a banana count as two items--and finding yourself stuck as to how to calculate a twixt and snicker bar)?