My MIL is in the last stage of Alzheimer's and has many odd behaviors. But, one I just can't figure out is why after using the toilet and wiping herself she puts the soiled paper in the waste basket. Sometimes she will stuff it in an empty toilet paper roll before putting it in the waste basket. When I remind her where it goes and to put it in the toilet she is so confused that she will hold her hand with the paper in it behind the toilet and try to drop it there. It's as if she never knew to put the soiled paper in the toilet. Like I said, she has many, many, many odd behaviors, but this one is just one I cannot figure out where it came from.