Should say dipper as many vehicles drive around with their high beams at night, unaware of the benefit of the low beam.
It is still very common to see people pressing the wrong button when calling the lift. They look at the position of the lift and press the corresponding button to make it come to their floor. Very often, confused by this logic, number are those that press both buttons! It just put a wide smile on your face… unless you’re in a hurry 🙁