Deirdre knew what she was doing, dumping Toby on Brian at the first possible moment, as awkwardly as possible. The fact that Toby cannot get into the house is the icing on the cake. I look forward to the court case that is inevitable at this point.
Also, I found the scenes with the jobsworth and Miss Wilson very interesting. Brian stood up for his son, in ways that I suspect Deirdre never has. I suspect Miss Wilson knows (or at least suspects) more about what is going on between Toby and his mother that Toby realizes.
I eagerly await the next chapter.