How do you erase certain parts of the memory?

[Sexbad]

Fortunately, there are multiple ways of solving Black Plague. This idea wasn't as used in Overture, but take the first ventilation shaft you crawl through in BP as an example. The icy blockage of the vent is completely physics based. You can actually put something from the adjacent room in its path and it will stop blowing out of the pipe.

I wonder if you were to block all the kennel walls with boxes, would the dogs not come out?