When we were trying to sell a house in Kent many years ago, the estate agent put a “sold” sign outside it when, in reality, someone had made an offer, but only an offer without much commitment. I removed the “sold” part of the sign to reveal the “for sale” part of the sign that was hidden underneath it. Then, I rang the agent, told him off for being premature about advertising our house as being sold. Also, I told him what I had done about it. He replied cheekily: “Good man”, without making any apology. This same agent had told us days after we put our house sale in his hands: “Don’t worry about it. I’ll sell it, okay. Now, you can just go out and spend the money right now.”
The agent’s somewhat infuriating, unapologetic answer regarding his sign was typical of people living in that part of Kent. If, for example, someone caused a problem, such as, for example, scratching your car or blocking you into a parking place, and then you alerted the miscreant to the problem, he (usually) or she would not apologise, but instead say cheekily: “Oh yeah?”
There are two other nonchalant responses that continue to infuriate me after complaining about something or having pointed out a serious problem. These are: “These things happen” and “such is life”.