Working with demented patients poses challenges not just because of the difficulties that dementia imposes on the patients’ but also because of some associated constraints that are seen in these population. One such factor is wandering which you identified at a possible obstacle. Wandering in the evening otherwise called sundowning creates a challenge even in very structured settings. I am sure you have already thought about this but may have fewer tendencies to deal with wandering if your project is done in the morning or early afternoons. The other factor that can be a potential challenge is dealing with confusion from the disease process that is not necessarily related to sundowning but causes wandering behavior as well in this population.
