One positive you can always get out of these kind of books is that they don't pretend to be the "literally" type and as a result they are a quick read. But one major drawback that books like these suffer is that they are racist, misogynous by nature and more often than not are filled with cardboard characters.
Ok, understood. All of the above follies could be blamed on the era in which "The Rats" was written. But one thing that I could not understand was that the protagonist (Harris) did not even thought to arm himself once after his first serious "battle" against the rats in the school (he used a poker to fight the rats there)where he was employed as an art teacher.
But after that, wherever he went, he went totally unarmed relying on his hands to fight the rats. If only this glaring stupidity was being avoided, this book could have been so much better.