All nurses and healthcare assistants working in elderly care are urgently needed. Please spare 15 minutes of your time to provide information about your personal experiences related to challenging behaviours.
OK, why do you want to know, and to what use would you put this information? More to the point, precisely what do you want to know. If you provide this info I'm sure there are many good people who would be willing to help, just clarify in a more structured way, good luck, it is quite some problem!