My wife is water incontinent and occasionally there are accidents with motions. I eventually removed the carpet tiles from the toilet leaving the bare wooden floor boards which are easier to clean, however, I intend to put vinyl down as the advantages of this are now clear to me. The accidents have in part been due to her uncertainty as to where to go, and also her inability to properly locate herself at the seating position (apparently due to the brain not building the picture correctly due to her AD). I agree with others that the best option is to always accompany the person but this may not always be convenient or possible. Time has meant that we now use incontinence pants and I am fortunate that my wife does not object to these. I initially tried her with the more feminine type i.e. pull up pants, for dignity but couldn't find any that were leak proof. Following a visit by the incontinence nurse we are now using the wrap around type with sticking plaster fasteners, provided by the NHS. In some respects I have found them easier to put on my wife than the pull on pants but they are more cumbersome and obvious. However, despite the downside of the NHS pads they have been a real saviour as I very rarely have wet clothing, bedding or seating to deal with which used to be frequent. They also retain the occasional accidental motion and with a bit of care I avoid the mishaps on the floor. I chose to use the 'super' size of pad as my wife has a large tank but I believe this size has also helped minimise the leakages from them. I still take my wife to the toilet when I believe she should be in need, or when I think it may be a reason for her aggitation, so I am using the pads as essential support. Perhaps this is something you could consider with your mum.