Pete,
That still amazes me!
The infestation we had in the house, and it was a VERY bad one, BAD BAD BAD,
their point of interest was peppermint candies, a huge bag from Sams. They ate it all, we had FAT, FAT, FAT, diabetic mice!!
they carried those mints up the walls, into every room of the house, we found remnants for months, well, ok, well over a year, and much to our dismay, we actually found one more in a closet we know was totally cleaned out just last month, and that is like 2 years later.
I guess there is a difference in the mints and your liquid??
I do agree with you on this, what seems to work for one of us, does not seem to work for someone else on the MOC.
Guess you could say, they are amazing animals. SIGHHHH