Talked to Mom tonight. Turns out they are racoons, not opposums. Two very large racoons. The conservation officer said to put chicken wire in all the openings to the outside, so various grandsons came over and did that today. The larger trap set out last night didn't catch them. The food in the trap was gone and the trap wasn't sprung. These are smart racoons. Mom thinks that L. has been feeding these coons for a long time, since she kept saying that the cats sure ate a lot of food. I wondered why cats needed to be fed twice a day when it was first mentioned. So, tonight we find out which side of the chicken wire the coons ended up being trapped on. I didn't ask if anyone has looked for them in the house before blocking all the access points. And, why are there holes in the first place? Seems that when L's husband built the place he decided that was a cheap way to get heat under the house to keep the pipes from freezing. So, there was no floor under the bathtub or something. Sometimes the truth is just to weird to ask for more details. No word on if the rifle is still part of the plan.