Re: Numbers.
"Google can give me a house number if they want but they *never* get a right answer from me. I will *always* sabotage the answer, either by leaving out or, conversely, inserting a digit, or interchanging 1's and 7's, 0's and 8's, 9's and 4's, etc. The important thing is that the number they get is as different as possible from the actual number in the image. For example, changing 7038 to 7036 is not really worthwhile, but changing it to 138 is very satisfying indeed."
Two problems. First, they'll use statistics to remove you as an outlier. Second, you run the risk of sabotaging the wrong number (the known one) and getting rejected.