Someone needs to start a cat infestation. My garage used to be like this. Then I opened a window, so that the neighborhood cats could enter.
No mice after just a couple of months.
I am not even joking, the situation in this trench seems serious and cats are brutal hunters.
I have heard that you should divide by two and add 7.
I am 40, so that would mean I should be attracted to 27 year olds and up. Generally, it checks out. Caveats may apply, as people are, you know, different.