I've said and done some pretty dumb things myself over the years because of not paying attention to my surroundings or something someone has said. Like the time I stepped over a very low gate because I couldn't be bothered to bend down to open it, only to trip over something I didn't see in the grass on the other side and go flat out on my face on the lawn. That was embarrassing enough, but I did exactly the same thing in exactly the same place when I called back for my money later in the day. As I was going down for the second time I was thinking, "What an idiot." I felt an even bigger numpty when the customer opened the door and said he hoped I wasn't going to charge him for the acrobatics.