You know there are times when you have to execute a complicated manoeuvre when you're driving a car? For example, backing out of a tight parking space and driving though small gaps?
If you have a passenger with you (maybe it's your Wife...) you may find that they like to give you some advise as you drive, along the lines of
"oooohh, you're a bit close to that wall..."
Here is the important bit: You will want to reply flippantly with something like
"Don't worry, It's not the first time I've driven a car you know!!". My advise to you is to save this line until you have successfully completed the manoeuvre...
You don't want to make your arrogant remark and then a second or so later drag the side of the car down the sharp pointy wall that has just been pointed out to you. This is especially true if it's her car and not yours that you are driving.